Peter seeing him saith to Jesus, Lord, and what shall this man do ?
Ver. 21. And what shall this man do] When Peter considered that John was dearly beloved and yet not alike forewarned of suffering death, as himself was, he began to doubt whether Christ spake this of love to him or not. Nothing is more ordinary with us than to question God's affection when we are in affliction; to conceive hard things of God and heavy things of ourselves, as if no children, because chastised. Whereas we should learn to look through the anger of God's corrections, to the sweetness of his loving countenance, as by a rainbow we see the beautiful image of the sun's light in the midst of a dark and waterish cloud. (See my "Love Tokens," Doct. 2, Use 1.)