If you know these things, blessed are you if you do them.
If ye know these things,.... The duties they owed to him, and one another; those kind offices of love and respect to each other; the humility, condescension, and brotherly love, which ought to be in them, and of which he had given them an example: happy are ye if ye do them; for the bare theory, or a mere speculative knowledge of these things, is...
Our Lord here intimates unto us these two things: 1. The necessity of knowledge, in order unto practice. 2. The necessity of practice, in order unto happiness. A man may know the will of God indeed, and not do it; but he can never do the will of God (acceptably) and not know it. The knowledge of God's will and our duty, is necessary to the practice of it.
It has generally been taken for granted by commentators that Christ's washing his disciples' feet, and the discourse that followed it, were the same night in which he was betrayed, and at the same sitting wherein he ate the passover and instituted the Lord's supper; but whether before the solemnity began, or after it was all over, or between the eating of the passover and...
Commenting on John 13:1-17