A wicked and adulterous generation seeks after a sign; and there shall no sign be given unto it, but the sign of the prophet Jonah.
And he left them, and departed.
All Commentaries on Matthew 16:4 Go To Matthew 16
Theophylact of Ochrid
AD 1107
He reproves them for their request, the purpose of which was only to test, and He calls them hypocrites, saying, "As it is with the phenomena of the sky where the sign of a storm differs from the sign of calm weather, and one who sees the sign of a storm would not expect calm weather, nor would one seeing the sign of calm weather expect a storm, so too must you think about Me. For this time of My appearing differs from that which is to come. Now there is need for signs on earth, but signs in heaven are reserved for that time when the sun will be extinguished, the moon will be hidden, and the heavens will be changed."
. He calls them "a wicked generation" for tempting Him, and "adulterous" for deserting God and going over to the devil’s side. Although they asked for a sign from heaven, He gives only the sign of Jonah, which is, that for three days He will be in the belly of the great whale of death, and then He will rise. Yet you might say that this sign too is from heaven, for at His death the sun was darkened and all creation was changed. Mark the words "there shall no sign be given unto it, but the sign of the prophet Jonah." It was for them that the signs were given, that is, the signs took place for their sakes, yet they did not believe. This is why He left them as incurable and departed.