John 13:19

I have been led on, He says, by very urgent reasons to give you, even before the time, this account of the events that will very shortly happen. For it will gratify those who hear Me, and bring them no slight advantage, if they know My aim in the matter. For to be recklessly wasteful in the use of words in meaningless dissertations is contrary to My custom and pleasure: but whatsoever seems likely to be fraught with no slight profit to you provided you have knowledge of it, this I feel constrained to instil in your ears.

From now on I tell you, before it happens, so that, when it has happened, you may believe that I am, namely God, who knows all things before they happen: Sirach 23: "To the Lord God, before they were created, all things are known," etc.

Then when he says, I tell you this now, he gives the reason why he mentioned there was an exception. As if to say: I have been silent about his malice for a long time, but because the time is near when it will appear …

Now I tell you before it come,....

"What I am saying does not refer to all of you. I know the ones I have chosen. But this is to fulfill the scripture, ‘The one who eats my bread has turned against me.’ I am telling you this now, before it happens, so that when it happens you may believe that I am he. I tell you the solemn truth, whoever accepts the one I send accepts me, and whoever accepts me accepts the one who sent me." If we would understand the full meaning of these verses, we must mark carefully where they stand in the chapter.

"What I am saying does not refer to all of you. I know the ones I have chosen. But this is to fulfill the scripture, ‘The one who eats my bread has turned against me.’ I am telling you this now, before it happens, so that when it happens you may believe that I am he. I tell you the solemn truth, whoever accepts the one I send accepts me, and whoever accepts me accepts the one who sent me." If we would understand the full meaning of these verses, we must mark carefully where they stand in the chapter. They follow right after the remarkable passage in which we read of Christ washing His disciples' feet. They stand in close connection with His solemn command, that the disciples should do as they had seen Him do. Then come the five verses which we have now to consider. We are taught, for one thing, in these verses, that Christians must never be ashamed of doing anything that Christ has done. We read, "Verily, I say unto you, The servant is not greater than his Lord; neither he that is sent greater than he that sent him." There seems little doubt that our Lord's all-seeing eye saw a rising unwillingness in the minds of the Apostles to do such menial things as they had just seen Him do. Puffed up with their old Jewish expectation of thrones and kingdoms in this world, secretly self-satisfied with their own position as our Lord's friends, these poor Galileans were startled at the idea of washing people's feet! They could not bring themselves to believe that Messiah's service entailed work like this. They could not yet take in the grand truth, that true Christian greatness consisted in doing good to others. And hence they needed our Lord's word of warning. If He had humbled Himself to do humbling work, His disciples must not hesitate to do the same. The lesson is one of which we all need to be reminded.

That - ye may believe - These frequent predictions of his death, so circumstantial in themselves, had the most direct tendency to confirm the disciples, not only in the belief of his being the Messiah, but also in that of his omniscience.