Church Fathers on John 16:17

Our Lord after having relieved the spirits of the disciples by the promise of the Holy Spirit, again depresses them: A little while, and you shall not see Me. He does this to accustom them to the mention of His departure, in order that they may bear it well, when it does come. For nothing so quiets the troubled mind, as the continued recurrence to the subject of its grief.

He said, A little while, and you shall not see Me alluding to His going to be taken that night by the Jews, His crucifixion the next morning, and burial in the evening, which withdrew Him from all human sight.

The meaning of these words however was obscure, before their fulfillment; Then said some of His disciples among themselves, What is this that He said to us, A little while, and you shall not see Me; and again, a little while, and you shall see Me; and, Because I go to the Father?