Catena Aurea on John 13:33–35: John Chrysostom

And therefore He said, little children; for He did not mean to speak to them, as He had to the Jews. Ye cannot follow Me now, He says, in order to rouse the love of His disciples. For the departure of loved friends kindles all our affection, and especially if they are going to a place where we cannot follow them. He purposely too speaks of His death, as a kind of translation, a happy removal to a place, where mortal bodies do not enter.