And Adam lived an hundred and thirty years,.... The Septuagint version, through mistaken, gives the number two hundred and thirty years:and begat [a son]; not that he had no other children during this time than Cain and Abel; this is only observed to show how old he was when Seth was born, the son here meant; who was begottenin his own likeness, after his image; not in the likeness, and after the image of God, in which Adam was created; for having sinned, he lost that image, at least it was greatly defaced, and he came short of that glory of God, and could not convey it to his posterity; who are, and ever have been conceived in sin, and shapen in iniquity; are polluted and unclean, foolish and disobedient; averse to all that is good, and prone to all that is evil: the sinfulness of nature is conveyed by natural generation, but not holiness and grace; that is not of blood, nor of the will of man, nor of the flesh, but of God, and produced of his own will, by his mighty power impressing the image of his Son in regeneration on his people; which by beholding his glory they are more and more changed into by the Spirit of God.
The Jewish writers understand this in a good sense, of Seth being like to Adam in goodness, when Cain was not: so the Targum of Jonathan,"and he begat Seth, who was like to his image and similitude; for before Eve had brought forth Cain, who was not like unto him---but afterwards she brought forth him who was like unto him, and called his name Seth.'
'So they say Cain was not of the seed, nor of the image of Adam, nor his works like Abel his brother; but Seth was of the seed and image of Adam, and his works were like the works of his brother Abel; according to that, "he begat (a son) in his own likeness".