John 13:14

¹⁴εἰ οὖν ἐγὼ ἔνιψα ὑμῶν τοὺς πόδας ὁ κύριος καὶ ὁ διδάσκαλος, καὶ ὑμεῖς ὀφείλετε ἀλλήλων νίπτειν τοὺς πόδας·f

John 13 marks a decisive pivot in the Fourth Gospel. Jesus, knowing his hour has come, washes his disciples' feet in an act of shocking humility, then identifies Judas as his betrayer and predicts Peter's denial. The chapter establishes the new commandment of love and models servant