Why Do Catholics Believe Jesus was God? by Life Teen • December 6, 2012 Jesus Himself claims to be God throughout the Gospels as well. Jesus asked the Jews, 'Do you say . . . ‘Ìâ‰âÂÌâèÏYou are blaspheming,' because I said, ‘Ìâ‰âÂÌâèÏI am the Son of God'?' (John 10:36). Calling yourself God when you are not is blasphemy, the worst kind of sin for the Jews. That's why the Jews wanted to put Him to death . . .