[Jesus] rose from supper and laid aside His
garments, took a towel and girded Himself. After that, 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. John 13:4-5 (NKJV)
Jesus answered and said to him, "What I
am doing you do not understand now, but you will know after this." John
13:7(NKJV)
So when He had washed their feet, taken His
garments, and sat down again, He said to them, "Do you know what I have
done to you? John 13:12 (NKJV)
If you know these things, blessed are you if
you do them. John 13:17 (NKJV)