A serious study of Jesus Christ's life on earth, as chronicled by Matthew, Mark, Luke and John generally finds a seeker arriving at one of three conclusions: Jesus is a liar, a lunatic or the Messiah, the Son of God. What He is not is simply “a good teacher."
Jesus claimed to be God, to have control over creation, to have authority to forgive sins. He predicted He'd die and three days later live again! He said He was Truth and is the only door to have eternal life! He even encouraged people to worship Him!