John 13:14

14IfεἰthereforeοὖνIἐγὼhave washedἔνιψαyourὑμῶντοὺςfeetπόδαςtheὁLordκύριοςandκαὶtheὁTeacherδιδάσκαλος,alsoκαὶyouὑμεῖςoughtὀφείλετεof one anotherἀλλήλωνto washνίπτεινtheτοὺςfeetπόδας·

Therefore if I, the Lord and the Teacher, washed your⁺ feet, you⁺ also ought to wash the feet of one another.