Jesus most frequently quoted the Old Testament book of Psalms during his ministry. The Psalms served as a significant source of scripture for Jesus, as seen in various instances throughout the Gospels. For example, during his crucifixion, Jesus cited Psalm 22:1, saying, "My God, my God, why hast thou forsaken me?" This highlights the deep connection Jesus had with the Psalms[1][3][7]. In additio..