John 6:67-71

Jesus asked the twelve followers, “Do you want to leave, too?” Simon Peter answered him, “Lord, who would we go to? You have the words that give eternal life. We believe and know that you are the Holy One from God.” Then Jesus answered, “I chose all twelve of you, but one of you is a devil.” Jesus was talking about Judas, the son of Simon Iscariot. Judas was one of the twelve, but later he was going to turn against Jesus.