Judas betrayed Jesus.

Mark 14:43-49

43 While he was still speaking, Judas arrived. Even though he was one of Jesus’ twelve disciples, he came to enable Jesus’ enemies to seize him. A crowd who carried swords and clubs was with him. The leaders of the Jewish Council had sent them. 44 Judas, who was ◄betraying Jesus/helping Jesus’ enemies to seize him►, had previously told this crowd, “The man whom I kiss is the one whom you want. When I kiss him, seize him and lead him away while you guard him carefully.” 45 So, when Judas arrived, he immediately went to Jesus and said, “My teacher!” Then he kissed Jesus on his neck/cheek. 46 Then the crowd seized Jesus. 47 But one of the disciples who was standing nearby drew his short sword. He struck the servant of the high priest with it to kill him, but he only cut off his ear. 48-49 48-49Jesus said to them, “◄It is ridiculous that you come here to seize me with swords and clubs, as if I were a bandit!/Have you come here to seize me with swords and clubs, as if I were a bandit [RHQ]?► Day after day I was with you in the Temple courtyard teaching the people Why did you not seize me then? But this is happening in order that what the prophets have written in the Scriptures about me may be fulfilled {may happen}.”