John Chrysostom
Catena Aurea · Lukasevangelium 3
Then said he to the multitude that came forth to be baptized of him, O generation of vipers, who hath warned you to flee from the wrath to come? Bring forth therefore fruits worthy of repentance, and begin 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: every tree therefore which bringeth not forth good fruit is hewn down, and cast into the fire,
(Hom. in Matt. 10.) The dweller in the wilderness, when he saw all the people of Palestine standing round him and wondering, bent not beneath the weight of such respect, but rose up against them and reproved them. (Hom. in Gen. 12.) The holy Scripture often gives the names of wild beasts to men, according to the passions which excite them, calling them sometimes dogs because of their impudence, horses on account of their lust, asses for their folly, lions and panthers for their ravening and wantonness, asps for their guile, serpents and vipers for their poison and cunning; and so in this place John calls the Jews a generation of vipers.