The strongest Christian case is that Jesus did and said things that, in a Jewish setting, point beyond ordinary prophethood. The Muslim reply is not to belittle Jesus, but to ask whether those texts really prove divine nature, or whether they fit better with a mighty messenger acting by God's command.
How the Christian case is usually made at its strongest
A careful Christian argument does not rely only on one verse. It gathers a pattern: Jesus forgives sins, receives worship, speaks with unique authority, calls God his Father in an exceptional way, says "before Abraham was, I am" in John, and is linked with the heavenly "Son of Man" of Daniel 7. Christians also point to his miracles, his sinlessness, and the resurrection as God's vindication of his identity.
In its strongest form, the argument says: first-century Jews were strict monotheists, so the earliest followers would not have included Jesus within divine honor unless Jesus himself had warranted it. The claim is not merely that Jesus was loved later, but that the Gospels preserve memories of him exercising prerogatives belonging to God.
What this argument can fairly establish
It can establish that the New Testament presents Jesus as far more than a normal teacher. It can also establish that some early Christians spoke of Jesus in very exalted language. A Muslim should acknowledge this honestly. The disagreement is not over whether Jesus is great. The Quran itself calls him the Messiah, a Word from Allah, born miraculously, supported by the Holy Spirit, and a worker of miracles by God's permission.
And We gave Jesus, the son of Mary, clear proofs and supported him with the Pure Spirit.
Quran 2:87
I heal the blind and the leper, and I give life to the dead - by permission of Allah.
Quran 3:49
So if the Christian argument is simply that Jesus had a unique rank among God's servants, Muslims agree. If it is that his followers came to regard him with extraordinary devotion, history also supports that.
Where the proof falls short
The step from "exalted Messiah" to "God incarnate" is the point that is not proven. Many Gospel statements can be read through the language of agency: a prophet speaks for God, judges by God's command, forgives by God's authorization, and receives honor as God's chosen representative. In the Bible itself, kings, angels, judges, and prophets can bear divine authority without sharing God's essence.
Miracles do not prove deity. Moses split the sea; Elijah raised the dead by God's leave; the Quran says Jesus gave life to the dead by Allah's permission. A miracle proves that God supports His messenger, not that the messenger is God.
Terms like "Son of God", "Lord", and even receiving homage need interpretation. "Son of God" is used in biblical language for Israel, Davidic kings, and the righteous. "Lord" can mean master, teacher, or exalted ruler. Acts of bowing can be worship, but they can also be royal homage, depending on context. The Muslim objection is that later theology often loads these phrases with meanings not required by the words themselves.
What the Quran says Jesus taught
The Quran's position is plain: Jesus is the Messiah and a true prophet, but not God and not God's literal son. It also portrays Jesus himself as rejecting worship directed to him.
They have certainly disbelieved who say, "Allah is the Messiah, the son of Mary," while the Messiah said, "O Children of Israel, worship Allah, my Lord and your Lord."
Quran 5:72
And when Allah will say, "O Jesus, son of Mary, did you say to the people, 'Take me and my mother as deities besides Allah'?" He will say, "Glory be to You! It was not for me to say what I had no right to say."
Quran 5:116
So the Christian case is serious as an argument from Christian scripture and later Christian theology. But it does not compel the conclusion that Jesus was divine during his earthly life. At most, it proves an exalted portrait of Jesus in the New Testament. The Quran gives a clearer and simpler reading: Jesus was a noble servant of Allah, mighty in signs, but always calling people to worship the One God alone.