John 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.
That men should be made out of stones, is like Isaac coming from Sarah’s womb; Look into the rock, says Isaiah, whence ye were hewn. Reminding them thus of this prophecy, he shews that it is possible that the like might even now happen.