John Chrysostom — as excerpted in the Catena Aurea on Matthew 20:29-34

“(Hom. lxvi.) Christ suffered them to be forbidden, that their desire might be the more evidenced. Hence learn that though we be repulsed, yet if we come to God with earnestness, of ourselves, we shall obtain that we ask. It follows, And Jesus stood still, and called them, and said, What will ye that I should do unto you?”