Maybe you're convinced a God exists. But why the Christian God specifically? Aren't all religions basically the same? Actually, they're not - and Christianity makes claims that no other religion dares to make. Claims that can be tested.
You hear it everywhere: “All religions are different paths up the same mountain.” “They all teach the same basic thing - be a good person.” “It doesn’t matter what you believe, as long as you’re sincere.”
It sounds nice. It sounds tolerant. But there’s a problem: it’s not true.
The major world religions don’t just disagree on small details. They disagree on the biggest questions imaginable - questions like: Is there one God, many gods, or no God at all? Is the universe created or eternal? Do you live once or get reincarnated forever? Is there a heaven? What happens when you die?
These aren’t minor differences. They are opposite answers to the most important questions in life. They can’t all be right at the same time - for the same reason that 2 + 2 can’t equal both 4 and 7.
Let’s compare the world’s largest religions on their core claims. This isn’t to disrespect anyone - it’s to take them all seriously enough to notice that they say very different things.
| Question | Christianity | Judaism | Islam | Hinduism | Buddhism |
|---|---|---|---|---|---|
| Who is God? | One personal God in three persons | One personal God (the same God as in Christianity) | One God (Allah), strictly singular | Brahman - an impersonal force in everything; millions of gods | No creator God; the question is set aside as unhelpful |
| Who is Jesus? | God in human form - the Son of God | Not the Messiah - a false teacher or minor figure | A prophet - not God, not crucified | One of many divine teachers | Not part of Buddhist teaching |
| How are you saved? | Grace - a free gift from God through faith | Obedience to God’s law (Torah); repentance and good deeds | Submission to God’s will; good deeds must outweigh bad | Cycle of reincarnation until your soul merges with Brahman | End suffering by following the Eightfold Path to reach Nirvana |
| What happens after death? | One life, then judgment and eternal life with God | One life, then judgment; views on afterlife vary | One life, then judgment - Paradise or Hell | Reincarnation - potentially thousands of lives | Rebirth until Nirvana is reached - the end of the self |
| The Messiah? | Jesus is the promised Messiah | Still waiting for the Messiah to come | Jesus was a prophet, not the Messiah | No single Messiah concept | No Messiah concept; Buddha is a teacher, not a savior |
| Can the core claim be historically tested? | Yes - the Resurrection is a public, historical event | Partially - rooted in historical events (Exodus, Temple), but the Messiah claim is future | No - Muhammad’s revelation was a private encounter | No - based on philosophical ideas, not historical events | No - based on personal enlightenment, not a historical event |
Notice something crucial: these religions disagree on whether Jesus is God, whether he was crucified, whether there’s one God or millions, whether the Messiah has come, and how people are saved. These aren’t “different paths up the same mountain.” They’re different mountains entirely.
Saying “all religions are the same” actually disrespects every religion - because it ignores what they each actually teach. A Hindu, a Muslim, a Jew, and a Christian would all disagree with the claim that their faiths say the same thing. Taking religions seriously means recognizing their real differences.
Of all the world’s religions, Judaism has the most in common with Christianity. Christians and Jews worship the same God. They share the same Old Testament Scriptures. They agree on creation, moral law, the reality of sin, and the expectation of a coming Messiah.
So what’s the disagreement? It comes down to one enormous question: Has the Messiah already come?
Jews say no - they are still waiting. Christians say yes - Jesus of Nazareth is the Messiah the Old Testament prophets described. Christianity does not reject Judaism; it claims to be its fulfillment. Jesus himself said, “Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them” (Matthew 5:17).
So the question becomes: does Jesus actually match what the Old Testament prophets predicted about the Messiah? Here’s where the evidence gets remarkable.
The Old Testament contains hundreds of passages that Jewish and Christian scholars alike have identified as messianic - describing what the Messiah would do, where he would come from, and what would happen to him. These were written centuries before Jesus was born. Here are just a few:
Mathematician Peter Stoner calculated the probability of any single person fulfilling just 8 of these prophecies by chance: 1 in 1017 - that’s 1 in 100,000,000,000,000,000. To visualize it: cover the entire state of Texas two feet deep in silver dollars, mark one of them, and have a blindfolded person pick it up on the first try. Jesus fulfilled not 8, but over 300 messianic prophecies.
Here is what makes Christianity truly unique among world religions: its central claim is a public, historical event that can be investigated.
The heart of Christianity is not a philosophy, not a feeling, not a private vision. It is a claim that a specific man - Jesus of Nazareth - was publicly executed by the Roman government, buried in a known tomb, and then physically rose from the dead three days later, in front of hundreds of eyewitnesses.
The apostle Paul said it directly: “If Christ has not been raised, our preaching is useless and so is your faith” (1 Corinthians 15:14). Paul essentially told the world: if you can disprove the Resurrection, Christianity is finished.
No other major religion makes such a risky, testable claim:
Many people say, “Jesus was a great moral teacher - but I don’t believe he was God.” That sounds reasonable. But here’s the problem: Jesus didn’t leave that option open.
Unlike other religious founders, Jesus didn’t just teach good things. He made claims about himself that forced people to make a choice:
This is what makes Jesus different from every other religious founder. Muhammad never claimed to be God - he claimed to be God’s messenger. Buddha never claimed to be God - he claimed to have found a path to enlightenment. Only Jesus claimed to be God himself, walking among us.
C.S. Lewis - the famous author of The Chronicles of Narnia and one of the 20th century’s greatest thinkers - noticed something important. He argued that Jesus’s claims about himself leave us with only three options:
Lewis’s point was devastatingly simple: the one thing you cannot say is that Jesus was “just a great moral teacher.” A great moral teacher doesn’t claim to be God unless he actually is. A merely human teacher who claims to be God is either lying or insane - neither of which qualifies him as a “great moral teacher.”
Lewis was a former atheist and Oxford professor who carefully examined the evidence before becoming a Christian. His “Liar, Lunatic, or Lord” argument has been debated by philosophers for decades - and it remains one of the most powerful starting points for thinking about who Jesus really was.
You may have heard atheists say something like this: “Christians reject thousands of gods - Zeus, Thor, Vishnu, Ra. Atheists just reject one more god than Christians do.”
It’s a clever sound bite. But it’s logically flawed. Here’s why:
Christians don’t reject Zeus, Thor, and Ra for the same reason atheists reject the Christian God. Christians reject those gods because the evidence and arguments point to a very specific kind of God - a timeless, spaceless, immensely powerful, personal Creator - and Zeus, Thor, and Ra don’t fit that description. They’re characters in stories about powerful beings within the universe, not the Creator of the universe itself.
In other words, the arguments for God’s existence from previous lessons (the cosmological argument, the moral argument, fine-tuning) point to a specific kind of Creator. The question is which religion’s description of that Creator best matches the evidence. That’s a very different question from “do you believe in any god at all?”
“It’s arrogant to say your religion is the only right one.”
Every worldview makes exclusive truth claims - including atheism (which claims there is no God) and pluralism (which claims no religion is exclusively true). The question isn’t whether exclusive claims exist - it’s which exclusive claim best fits the evidence. A doctor who says “this medicine will cure you and that one won’t” isn’t arrogant - she’s following the evidence. Christianity asks people to examine the evidence and decide for themselves.
“What about people who never hear about Jesus? Would a good God send them to hell?”
This is a genuine and important question - and Christians have wrestled with it honestly for centuries. The Bible says God judges people fairly and that He is just (Genesis 18:25). Many theologians believe God can reach people through conscience, nature, and other means we may not fully understand. The key point for this lesson is: if you have heard the evidence, the question isn’t whether it’s fair to others - it’s what you will do with what you’ve seen.
“Maybe Jesus never actually claimed to be God. Maybe his followers exaggerated the story.”
This is the “Legend” objection - and it’s worth taking seriously. But consider: Jesus’s earliest followers were monotheistic Jews - people who believed worshipping anyone other than God was the worst possible sin. These men would not have invented a story claiming their rabbi was God unless something extraordinary convinced them. Also, Paul’s earliest letters (within 20–25 years of Jesus) already treat Jesus as divine - far too early for legendary development. We covered this in Lessons 4 and 5 on manuscript and archaeological evidence.
“Muslims also believe in Jesus - they just see him differently. Who’s right?”
Islam teaches that Jesus was a great prophet but was not God and was not crucified. Christianity teaches that Jesus is God and that his crucifixion and resurrection are the center of the faith. These claims directly contradict each other - they cannot both be true. The question is: which claim has better historical evidence? The crucifixion is confirmed by Roman historians (Tacitus), Jewish historians (Josephus), and multiple independent early Christian sources. The claim that Jesus was not crucified comes from the Quran - written over 600 years later. Historians overwhelmingly favor the earlier, multiply-attested sources.
What makes Christianity’s central claim unique compared to other major religions?
According to C.S. Lewis’s trilemma, why can’t we call Jesus “just a great moral teacher”?
The world’s major religions are not different paths up the same mountain - they make directly contradictory claims about God, Jesus, salvation, and the afterlife. Christianity stands apart because its central claim - the Resurrection of Jesus - is a public, historical event that can be investigated. And Jesus himself didn’t leave us the option of calling him “just a good teacher.” His claims force a decision: liar, lunatic, or Lord.