(24) Defile not ye yourselves.--The Lawgiver who solemnly introduced these precepts by five verses of preamble at the beginning of the chapter (Leviticus 18:1-5), now concludes by an equally solemn appeal to God's people sacredly to observe them in all their integrity, since the violation of them (Leviticus 18:6-23) has branded those nations with infamy, and brought about their national destruction, and expulsion from the very land which is now to be given to the Israelites.

Verses 24-30. - These verses contain a warning against the sins of incest and impurity already specified. The reason why the Canaanites were east out before the Israelites was that they were defiled in all these things,... and the land was defiled by them. God visited the iniquity of these debased races, and the land itself vomited out her inhabitants on account of their abominations. The fate of the Canaanites was therefore a witness to them of what would be their fate if they did like them. Defile not ye yourselves in any of these things.... Ye shall not commit any of these abominations,... that the land spue not you out also, when ye defile it. Special penalties are appointed for particular sins further on. Here there are but two punishments denounced, one for individual sinners, the other national. The individual sinner is to be cut off from the nation by excommunication, For whosoever shall commit any of these abominations, even the souls that commit them shall be cut off from among their people. The nation, if it does not thus purify itself by cutting off from itself the authors of these corruptions, is to perish like the Canaanites. The words vomiteth (verse 25) and spued out (verse 28) are in that tense of the Hebrew verb which is generally called by grammarians a preterite, but this tense does not necessarily imply a past time; the time referred to depends on the context. The previous verbs, "I cast out," "I do visit," being present in sense, the two verbs, "vomiteth out (her inhabitants)," and "spued out (the nations that were before you)," are present also (see Introduction).

18:1-30 Unlawful marriages and fleshly lusts. - Here is a law against all conformity to the corrupt usages of the heathen. Also laws against incest, against brutal lusts, and barbarous idolatries; and the enforcement of these laws from the ruin of the Canaanites. God here gives moral precepts. Close and constant adherence to God's ordinances is the most effectual preservative from gross sin. The grace of God only will secure us; that grace is to be expected only in the use of the means of grace. Nor does He ever leave any to their hearts' lusts, till they have left him and his services.Defile not ye yourselves in any of these things,.... In incestuous copulations and marriages, in adultery, corporeal and spiritual, and bestiality:

for in all these the nations are defiled which I cast out before you; that is, the seven nations of the land of Canaan, which God was about to eject out of their land to make room for the Israelites, and that on account of the above shocking vices which abounded among them; so that in some sense the land they dwelt upon was defiled by them, and called for vengeance on them, as even loathing its inhabitants, as afterwards suggested.