If the only way to enter the kingdom is to accept Jesus Christ, then you need to make sure you spend your time on earth saving as many people as you can. Now, of course, Christians also believe that Jesus is not just a prophet. He's not like Muhammad in Islam or gurus in Hinduism. He is actually the son of God. Now, Jewish people reject that. They believe that he was, if anything, a prophet or a false prophet. The people that are of the Islamic faith believe that Jesus was a great prophet.