Pseudo-Chrysostom
Catena Aurea · Matthäusevangelium 3
But when he saw many of the Pharisees and Sadducees come to his baptism, he said unto them, O generation of vipers, who hath warned you to flee from the wrath to come? Bring forth therefore fruits meet for repentance: And think not to say within yourselves, We have Abraham to our father: for I say unto you, that God is able of these stones to raise up children unto Abraham. And now also the axe is laid unto the root of the trees: therefore every tree which bringeth not forth good fruit is hewn down, and cast into the fire.
The axe is that most sharp fury of the consummation of all things, that is to hew down the whole world. But if it be already laid, how hath it not yet cut down? Because these trees have reason and free power to do good, or leave undone; so that when they see the axe laid to their root, they may fear and bring forth fruit. This denunciation of wrath then, which is meant by the laying of the axe to the root, though it have no effect on the bad, yet will sever the good from the bad.