"No man comes to the Father but by Me" is pretty clear. I'm curious about something: What messianic prophecies do Jews consider unfulfilled by Jesus?
MM
There are many, but the main four are: world peace, the return of all the Jews to Israel, the rebuilding of the temple, and universal knowledge of God.
I can think of some reasons this would be possible, but being Jewish is not one of them.
I don't know. When Jesus said "No man comes to the Father but by Me" remember He was speaking to the people around Him. Jesus could have meant that if they do not listen to Him and practice what He is teaching them they won't go to heaven. It is not certain He meant that for generations and generations into the future those who don't believe in Jesus or who have not even heard of Jesus are automatically not going to Heaven. So, I am not certain what was meant by that. I am a Christian, but I have family members who are not. I think the best way to convert people is by setting a good example. What made me go from agnostic to Christian was actually getting to know nice people who were Christians. Hearing Christians talking about others going to Hell actually turns alot of people off. Leave the decision of who is going to Heaven or Hell up to God.