Out of the many references to Jesus as God you find His I Am statements, Lord of the Sabbath, For the Father and I are one, or most plain John 1:1-14. This is who Jesus is, and to accept Jesus as our Lord and Savior means to accept all of who Jesus is. It would be like me accepting God as a loving God without accepting God as a judge also. This is theologically deep but still simple in the truth that Jesus is part of the Holy Trinity or Godhead. Good evangelism should prepare people for the truth of who Jesus is. He was not a mere man, not just a wise teacher, not even just a prophet, but God incarnate or in the flesh. It is in God alone who can forgive sins, which is exactly what he did in His ministry. Some called Him of the Devil or Satan himself. But Jesus not only forgave sins, but He had all the evidence to do so as in miracles, fulfilled prophecy, and the very act that no angel, demon, or man could do was to defeat both sin and death. That is only something God could do and God alone.