Every line of dialogue spoken by the character of Jesus comes directly from Bible verses, either from the Old Testament that Jesus is quoting or something he would say later in the New Testament. The only exceptions are when he says "I know who you are." and later "I am that rider."
The production had to recast the role of Jesus twice, the second time after more than two thirds of the production had already been completed. These scenes all had to be filmed again once Shayan Ardalan accepted the role, who ultimately completed the role for the film.