Who is Jesus Christ? When you say the Apostles' Creed, you confess that Jesus Christ is both true God and true man. But what does that mean? People who said this creed 1700 years ago still disagreed on who Jesus was. Many ideas were proposed, and the dispute among church leaders became quite bitter. Eventually, Emperor Constantine called a church conference of all the Greek-speaking bishops to decide what was correct. It took two conferences several decades apart to produce the Nicene Creed, which defines in more detail who Jesus Christ is.