John 13:2–5

2 And during supper, when the devil had already put it into the heart of Judas Iscariot, Simon’s son, to betray him, 3 Jesus, knowing that the Father had given all things into his hands, and that he had come from God and was going to God, 4 rose from supper, laid aside his garments, and girded himself with a towel. 5 Then he poured water into a basin, and began to wash the disciples’ feet, and to wipe them with the towel with which he was girded.