Most Christians in the West form their picture of Islam from the evening news, and it tends to be a picture of protests, attacks, and arguments about immigration. Far fewer have sat at a kitchen table with a Muslim family and heard them talk about prayer, or fasting, or their fear of standing before God on the last day. That second kind of encounter is the one most believers will actually have. It might be a coworker who steps away at midday to pray, or a neighbor who brings food over during Ramadan. Either way, it deserves better preparation than headlines can give.
Part of the difficulty lies in vocabulary. Muslims speak of God, prophets, revelation, mercy, and judgment, and a Christian listening casually can come away thinking the two faiths share most of their ground and differ mainly in detail. Those words carry different content in each faith, though, and the only honest way to see it is to let Islam describe itself first. That means using the terms its own followers would use before holding it up against what God has said in Scripture.
What Every Muslim Confesses
A person becomes Muslim by sincerely reciting the shahada, the confession that no god exists but God and that Muhammad is his messenger. Nearly everything else in the faith grows out of those two clauses. The first establishes tawhid, the absolute oneness of God, which Muslims understand to mean that God is single in His being, without partner or offspring and without any distinction within Himself. The second establishes Muhammad as the final prophet, the one through whom God’s last and complete revelation came to humanity.
Islam names shirk as the one sin God won’t forgive if a person dies in it. Shirk means associating anything with God, whether an idol, a rival deity, or any being treated as sharing in His divinity. It’s worth pausing over, because the Christian confession that Jesus is Lord and God falls directly under it. When a Muslim hears Christians worship the Son, what registers is the gravest offense a human being can commit, spoken in the language of devotion.
Sunni Muslims summarize their creed in six articles of faith:
- belief in God
- belief in His angels
- belief in His revealed books
- belief in His prophets
- belief in the Day of Judgment
- belief in divine decree, meaning God’s sovereign ordering of all that happens
The revealed books include the Torah given to Moses, the Psalms given to David, and the Injil, or Gospel, given to Jesus, though Muslims believe the Qur’an has superseded them all.
Practice is organized around five pillars:
- the confession itself
- ritual prayer five times a day facing Mecca
- the giving of alms
- fasting through the month of Ramadan
- the pilgrimage to Mecca for those able to make it
The Qur’an holds a place in Islam unlike any book in Christianity. Most Muslims believe it’s the eternal, uncreated speech of God. In their account, it was delivered to Muhammad through the angel Gabriel over roughly twenty-three years and preserved without change in its original Arabic. Scholars of both faiths have noticed that the Qur’an occupies roughly the place in Islam that Christ occupies in Christianity. The apostle John wrote that the Word became flesh, while Islam teaches that God’s eternal word came down as recitation, and that shift shapes nearly everything that follows.
Many Branches, One Root
Around eighty-five to ninety percent of Muslims worldwide are Sunni. The name comes from the sunna, the recorded example of Muhammad’s words and actions preserved in the hadith collections. Sunni Islam gives that record great authority alongside the Qur’an. Its law developed through four major schools, the Hanafi, Maliki, Shafi’i, and Hanbali, which differ on points of practice while holding the same creed. A Muslim from Turkey and one from Indonesia will often follow different schools without thinking of each other as outside the faith.
The Shia branch began with a dispute over who should lead the community after Muhammad died in 632. A minority believed leadership belonged to his cousin and son-in-law Ali and to Ali’s descendants. That conviction hardened into a separate tradition after Ali’s son Husayn was killed at Karbala in 680. Shia Muslims honor a line of Imams whom they regard as divinely guided and protected from error. The largest group, the Twelvers, believe the twelfth Imam went into hiding in the ninth century and will return at the end of the age as the Mahdi. Iran, Iraq, and Bahrain have Shia majorities, and the grief of Karbala still shapes Shia devotion through the yearly observance of Ashura.
Sufism runs through both branches as a mystical current rather than a separate sect. Sufis seek a direct, experienced nearness to God through practices like the repeated remembrance of His names. Sufi poetry, including the work of Rumi, is often the most familiar face of Islam in the West.
Salafism pulls in another direction, calling Muslims back to the practice of the first three generations and rejecting later developments as corruption. Its best-known form, Wahhabism, arose in eighteenth-century Arabia and gained lasting reach through its alliance with the house of Saud.
The Ahmadiyya movement, founded in nineteenth-century India, considers itself Muslim. Most other Muslims reject it, and Pakistan formally declared its members non-Muslim in 1974.
For all their disagreements over leadership, law, and spiritual practice, these branches hold the same line at the points that matter most to a Christian. None of them confesses Jesus as the eternal Son, and none receives His death on the cross as an atonement for sin. A Shia refugee from Iraq and a Salafi convert will practice their faith very differently. Even so, a conversation with either one about Christ will arrive at the same place.
The Sword and the Sources
Muhammad spent the first thirteen years of his prophetic career in Mecca as a preacher with a small following. The Qur’anic passages from that period deal largely with God’s oneness, the coming judgment, and patience under opposition. After his migration to Medina in 622, he became the head of a political community. Over the following decade he led and authorized dozens of military campaigns, and he died as the ruler of much of Arabia. The passages revealed in Medina reflect that setting, and any account of Islam that skips over them isn’t telling the whole story.
Several of those passages command fighting in direct terms:
- Surah 9:5 tells believers to kill the idolaters wherever they find them once the sacred months have passed, unless they repent, pray, and give alms.
- Surah 9:29 commands fighting against those among the People of the Book who don’t believe in God and the last day, until they pay a tax called the jizya and are humbled.
- Surah 8:12 speaks of striking the necks of unbelievers.
Other passages point elsewhere. The most famous is Surah 2:256, which says no compulsion exists in religion. Surah 5:32 likens the killing of one innocent soul to the killing of all humanity.
Many classical scholars resolved the tension through the doctrine of abrogation. It holds that later revelations can cancel earlier ones, and since Surah 9 is among the last chapters revealed, its commands often carried the day.
Classical Islamic law built on that foundation. Jurists divided the world into the house of Islam and the house of war, and they treated the expansion of Muslim rule as a legitimate religious duty. They placed Christians and Jews under Muslim rule in a protected but subordinate status. That status came with the jizya and with restrictions on building churches and sharing their faith. Every major school of law prescribed death for apostates, at least for adult men, drawing on a hadith in Sahih al-Bukhari in which Muhammad commands that whoever changes his religion be killed.
None of this came from modern extremists. It was the mainstream legal tradition of premodern Islam, and apostasy and blasphemy laws rooted in it remain on the books in a number of countries today.
Modern jihadist movements draw directly on this material. Sayyid Qutb, an Egyptian writer executed in 1966, argued that Muslim societies had fallen back into pre-Islamic ignorance and that true believers had to fight to restore God’s rule. His ideas passed through a line of thinkers into al-Qaeda and eventually into the Islamic State. The Islamic State declared a caliphate in 2014 and justified its atrocities with Qur’anic verses and hadith. Its reading was selective and brutal, yet it was quoting real words from real sources.
Most Muslims alive today reject that reading. Many understand the fighting verses as bound to specific wars in seventh-century Arabia, and many think of jihad mainly as the inward struggle against sin. Many Muslim scholars have condemned groups like ISIS in detailed legal terms. Most victims of jihadist violence have been Muslims, and a large share of the Muslim families now living in the West fled those very movements.
A Christian who tells a Syrian neighbor that her faith requires her to side with the people who destroyed her city will have said something she knows to be false about herself. The conversation will likely end there.
What can be said without exaggeration concerns the founder. Muhammad’s own example includes warfare, the execution of enemies, and the spread of rule by conquest, so a Muslim who fights in God’s name can point back to the prophet himself. Jesus left His followers another example. When Peter drew a sword in Gethsemane to defend Him, Jesus stopped him.
Matthew 26:52
Then Jesus said to him, “Put your sword back into its place. For all who take the sword will perish by the sword.”
John 18:36
Jesus answered, “My kingdom is not of this world. If my kingdom were of this world, my servants would have been fighting, that I might not be delivered over to the Jews. But my kingdom is not from the world.”
Christians have shed blood in Christ’s name, in the Crusades and the European wars of religion among other episodes, and the church should own that history without evasion. Those who did it had to set aside the example of the one they claimed to follow, while a jihadist can appeal to his.
Muslims sometimes answer by raising the conquest of Canaan, and it’s a fair question. Scripture presents that conquest as a specific act of judgment on nations whose sin God had endured for centuries. He told Abraham that the iniquity of the Amorites wasn’t yet complete (Genesis 15:16). The conquest was confined to one people, one land, and one moment in redemptive history. The church never received a commission like it. Its mission goes out through preaching, and the only blood it proclaims as saving belongs to Christ.
Who God Is and Who Jesus Is
Islam presents God as utterly transcendent. Muslims know His will through revelation and His attributes through His ninety-nine names, but His inner being remains beyond human knowing. In the Qur’an, God reveals His law far more than He reveals Himself. The Qur’an speaks of His mercy constantly, and every chapter but one opens by calling Him the Merciful, the Compassionate. His love, however, attaches to those who please Him. The Qur’an says God loves those who do good and those who follow the prophet. It says just as plainly that He doesn’t love transgressors or unbelievers.
Scripture describes a God who makes Himself known and whose love moves first toward people who haven’t earned it.
1 John 4:9–10
In this the love of God was made manifest among us, that God sent his only Son into the world, so that we might live through him. In this is love, not that we have loved God but that he loved us and sent his Son to be the propitiation for our sins.
That love flows from within God’s own life. The Father has loved the Son from before the foundation of the world, and the Spirit shares that fellowship, so love didn’t begin in God when He made something to love. A strictly solitary God would have no one to love until creation existed. That’s part of why Christians hold to the Trinity as the truth about who God is, and never as a puzzle attached to monotheism after the fact.
Matthew 28:19
Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit,
Muslims often misunderstand what Christians mean by the Trinity, partly because the Qur’an itself seems to. Surah 5:116 pictures God asking Jesus whether He told people to worship Him and His mother as gods beside God. Many Muslims come away assuming Christians believe in a divine family. Christians don’t, and saying so clearly removes a stumbling block that was never part of the faith.
Once that misunderstanding clears, a real disagreement still remains. Surah 112 declares that God neither begets nor is begotten, and Surah 5:73 calls anyone who says God is one of three an unbeliever.
Jesus, called Isa in Arabic, holds an honored place in the Qur’an. It affirms His virgin birth and His miracles and describes Him as pure. It gives Him titles no other prophet receives, calling Him the Messiah, a word from God, and a spirit from Him (Surah 4:171). Muslims also believe He’ll return before the final judgment. Many Christians are surprised by how much the Qur’an says about Him, and those points of honor can open real doors in conversation. Still, the same verse that calls Him God’s word warns its readers not to say “three,” and it insists He was only a messenger.
The sharpest break comes at the cross. Surah 4:157 says Jesus’ enemies neither killed nor crucified Him, though it was made to appear so to them. Most Muslim interpreters teach that God raised Jesus to heaven alive while someone else, often thought to be Judas, died in His place.
The crucifixion, though, is among the best-attested events of the ancient world. It’s recorded by the Roman historian Tacitus and the Jewish historian Josephus as well as by the apostles, and Jesus Himself spoke of His death as the reason He came.
Mark 10:45
For even the Son of Man came not to be served but to serve, and to give his life as a ransom for many.
When Christians point to the Gospels, Muslims often answer that the Bible has been corrupted, a charge called tahrif. The Qur’an itself makes that claim harder to hold. Surah 5:47 tells the people of the Gospel to judge by what God revealed in it, which assumes the Gospel in their hands in the seventh century was trustworthy.
The manuscript record supports that. Complete copies of the New Testament such as Codex Sinaiticus and Codex Vaticanus were made in the fourth century, about two hundred years before Muhammad was born, and papyrus fragments reach back much earlier. Those manuscripts show a Christ who dies, rises, and receives worship. Even the Great Isaiah Scroll among the Dead Sea Scrolls, copied more than a century before Jesus’ birth, already describes a servant who suffers in the place of others.
Isaiah 53:5
But he was pierced for our transgressions; he was crushed for our iniquities; upon him was the chastisement that brought us peace, and with his wounds we are healed.
Sin, the Scales, and the Question of Assurance
Islam teaches that every person is born in fitra, a natural state of purity oriented toward God. Adam and Eve disobeyed in the garden, but they repented and God forgave them, so their sin wasn’t passed down to their children. In this view, human beings are weak and forgetful rather than fallen. What they need most is guidance, which God provides through His prophets and His law. A person who hears that guidance, submits to it, keeps the required duties, and repents of wrongdoing can hope for God’s mercy.
On the Day of Judgment, the Qur’an describes scales on which each person’s deeds are weighed (Surah 7:8–9). Those whose good deeds are heavy will prosper, and those whose scales are light will be lost. Even then the outcome rests finally on God’s will, and no Muslim can know with certainty where they’ll stand. The Qur’an has Muhammad himself say that he doesn’t know what will be done with him or with his hearers (Surah 46:9). Many devout Muslims live with sincere hope and sincere uncertainty at the same time, and that uncertainty often sits just beneath the surface of a conversation about faith.
Scripture traces the human problem much deeper. Sin reaches into the heart before it ever becomes an action, and every person enters the world already estranged from God.
Psalm 51:5
Behold, I was brought forth in iniquity, and in sin did my mother conceive me.
Romans 3:23–24
for all have sinned and fall short of the glory of God, and are justified by his grace as a gift, through the redemption that is in Christ Jesus,
A condition that deep can’t be repaired by guidance alone, because a person who’s dead in sin needs more than better instructions. God’s justice also can’t simply wave sin aside, as though forgiveness cost nothing. The gospel answers both needs in Christ. He bore the judgment sinners deserved, and He gives His own righteousness to those who trust Him.
2 Corinthians 5:21
For our sake he made him to be sin who knew no sin, so that in him we might become the righteousness of God.
Ephesians 2:8–9
For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast.
Because salvation rests on Christ’s finished work, a believer can know where they stand before God, and Scripture says so directly.
1 John 5:13
I write these things to you who believe in the name of the Son of God, that you may know that you have eternal life.
Some Muslims spend a lifetime wondering whether their prayers and fasting will be enough. For them, few things in Christianity are more startling than a God who promises that the verdict is already settled. The promise rests on the one who kept the law in the sinner’s place, so its security never rises or falls with how well a person has performed.
Carrying the Gospel to a Muslim Neighbor
Most Muslims a Christian meets will be ordinary people raising families, working jobs, and trying to live faithfully by what they’ve been taught. Many come from cultures shaped by honor and shame, where hospitality means a great deal. In those cultures, turning down a meal or hurrying a conversation can close a door before it opens. Friendship usually has to come before persuasion. A Christian who accepts an invitation and listens to how a Muslim friend actually practices their faith will learn things no article can teach.
Conversations tend to go further when they stay close to Jesus Himself. Muslims already honor Him, so reading one of the Gospels together, perhaps Luke or John, lets them meet the Jesus of Scripture in His own words. That often does more than argument. The Christ of the Gospels forgives sins, accepts worship, calls Himself the Son, and walks deliberately toward His own death. Questions will rise naturally from the text, and a Christian doesn’t need to win every one of them on the spot.
1 Peter 3:15
but in your hearts honor Christ the Lord as holy, always being prepared to make a defense to anyone who asks you for a reason for the hope that is in you; yet do it with gentleness and respect,
Christians also need to count the cost their Muslim friends may face. In many families and communities, leaving Islam means being disowned or losing a livelihood. In some countries it can mean prison or death. A Muslim who begins following Christ will need a church ready to become family in the most literal sense, and believers should pray and prepare for that long before anyone takes the step.
Love doesn’t stop at the friendly neighbor, either. Christ’s command reaches people who have burned churches and killed believers.
Matthew 5:44
But I say to you, Love your enemies and pray for those who persecute you,
Christians in Egypt, Nigeria, and Pakistan have buried their dead and publicly forgiven the men who killed them, and that witness has carried further than any argument could.
Everything in this conversation finally comes back to one person. Islam honors Jesus as a prophet whom God rescued from the cross. The gospel proclaims a Savior who walked toward it unarmed and bore sin that wasn’t His own. A Muslim neighbor is best served by a Christian who understands what they believe and speaks honestly about where it departs from Scripture. That Christian keeps pointing them, with patience, to the Christ who died and rose again so that sinners could come to know God as Father.
