Why is Christianity the only way to God?

The truth of Christianity rests completely on Jesus. The gospels are the written accounts of Jesus' life and deeds, by eyewitnesses. Jesus said that He alone was the way to the Father in John 14:6, that He alone revealed the Father in Matt. 11:27 and Luke 10:22. Jesus claimed to be God in John 8:58 and Exodus 3:14, who forgave sins Mark 2:5 and Luke 5:20 and 7:48, and who rose from the dead in Luke 24:24-29 and John 2:19-21. Jesus said that He was the only way. Jesus is unique. He was either telling the truth, He was a liar, or He was crazy. But since everyone agrees that Jesus was a good man, how then could He be both good and a liar, or good and crazy? He had to be telling the truth if He was good. He is the only way.