Origen

(tom. xx. 14.) Or their sonship to Abraham having been disproved, they reply by bitterly insinuating, that our Saviour was the offspring of adultery. But perhaps the tone of the answer is disputatious, more than any thing else. For whereas they have said shortly before, We have Abraham for our father, and had been told in reply, If ye are Abraham’s children, do the works of Abraham; they declare in return that they have a greater Father than Abraham, i. e. God; and that they were not derived from fornication. For the devil, who has no power of creating any thing from himself, (qui nihil facit ex se) begets not from a spouse, but a harlot, i. e. matter, those who give themselves up to carnal things, that is, cleave to matter.