If there is a One True God, then there must be false gods. If there is One True Christ, then there must be false Christs. Everything cannot be true or nothing is true.
Jesus was crucified based on the lies of this world that were portrayed as truth. But God can squeeze HIS truth out of the midst of even the worst actions of human nature. That’s good news – the gospel truth. If God could not have caused HIS truth to rise out of the cesspool of human failure, we would have no gospel. God can still cause his truth to rise up in the heart of anyone who comes to him in humility. Then this calling is given: Dear friends, do not believe every spirit, but test the spirits to see whether they are from God, because many false prophets have gone out into the world. 1 John 4:1