Moses
Leviticus 18:27ESV·traditional attribution

(for the people of the land, who were before you, did all of these abominations, so that the land became unclean),

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. A law to preserve the honour of the marriage-bed, that it should not be unseasonably used (Lev 18:19), nor invaded by an adulterer, Lev 18:20. II. A law against that which was the most unnatural idolatry, causing their children to pass through the fire to Moloch, Lev 18:21.

Commenting on Leviticus 18:19-30

John Gill Reformed Baptist @doctorgill

For all these abominations have the men of the land done,.... The then present inhabitants of Canaan, who dwelt in it before the Israelites came into it; these were guilty of unclean copulations, of incestuous, marriages, of fornication and adultery, and of bestiality and idolatry: which were before you; lived in the land before them, had long dwelt there, but now about to be cast...

Keil & Delitzsch Lutheran @keilanddelitzsch

Lev 18:24-30 In the concluding exhortation God pointed expressly to the fact, that the nations which He was driving out before the Israelites (the participle משׁלּח is used of that which is certainly and speedily coming to pass) had defiled the land by such abominations as those, that He had visited their iniquity and the land had spat out its inhabitants, and warned the Israelites...

Commenting on Leviticus 18:24-30