John Chrysostom
Why, then, when Peter asked, "Where are You going?" did He not at once answer, "I am going to the Father, and you cannot go now"?
Why did He introduce so many words into His discourse, offering questions and answers?
To the Jews, of course, He justly did not speak this way. But why did He not speak so to the disciples?
Both to the disciples and to the Jews He had said that He came from God and was going to God. But now He speaks of this more clearly than before.
He did not speak so clearly to the Jews, because if He had said, "You cannot come to the Father except through Me," they would immediately have thought that this was spoken from pride.
But now, by keeping silent about this, He cast them into perplexity.
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Why, you ask, did He also speak in this way to the disciples and to Peter? He knew Peter's great zeal. Otherwise Peter would have troubled Him still more.
Therefore, to turn him away from this, He speaks in a veiled manner. When He had achieved what He wished by the obscurity and veiling of His speech, He again speaks openly.
After saying that no one can come to the place "where I am," He added, "In My Father's house are many mansions." Again He says, "No one comes to the Father except through Me."
He did not wish to say this to them at the beginning, so as not to cast them into greater sorrow. But when He had comforted them, then He says it.
After the rebuke given to Peter, He truly removed much of their sorrow. Meanwhile they themselves, fearing lest they hear the same thing, became more humble.
"I am the way." This confirms the words, "No one comes to the Father except through Me." The words "the truth and the life" assure them that this will certainly be so.
If I am the life, then death itself cannot prevent you from coming to Me.
In other words, if "I am the way," you will have no need of a guide. If I am the truth, My words are not false.
If I am the life, then even if you die, you will nevertheless receive what I have said.
As for the way, they understood this and confessed it. The rest they did not understand, and yet they did not dare ask about what they did not understand.
Still, even from what was said about the way, they received great consolation.
If it is in My power, He says, to bring you to the Father, then you will surely come there. And it is impossible to come there by any other way.
By the words He had said earlier, "No one can come to Me unless the Father draws him" (Jn 6:44), and again, "And when I am lifted up from the earth, I will draw all to Myself" (Jn 12:32),
and also by the words now spoken, "No one comes to the Father except through Me," He shows His equality with the Father.