John 13:17 in the King James Version
If ye know these things, happy are ye if ye do them.
Context
16 Most certainly I tell you, a servant is not greater than his lord, neither is one who is sent greater than he who sent him.
17 If you know these things, blessed are you if you do them.
18 I don’t speak concerning all of you. I know whom I have chosen; but that the Scripture may be fulfilled, ‘He who eats bread with me has lifted up his heel against me.’