Deuteronomy 20:18

18 If you don't destroy them, they'll teach you to follow all of the things the LORD hates. He hates the way they worship their gods. If you do those things, you will sin against the LORD your God.

Deuteronomy 20:18 Meaning and Commentary

Deuteronomy 20:18

That they teach you not to do after all their abominations,
&c.] This is another reason why they were to be utterly destroyed, not only because of the abominations which they committed, but to prevent the Israelites being taught by them to do the same; wherefore, as before observed from Jarchi, such as became proselytes were suffered to live among them, because there was no danger of idolatry from them, which even proselytes of the gate renounced; and though all other abominations are included, yet this is particularly respected, as appears from the following clause:

which they have done unto their gods;
to the honour of whom not only many superstitious rites and ceremonies were performed, and idolatrous actions committed, but acts of lewdness, and even unnatural uncleanness:

so should ye sin against the Lord your God;
a sin the most provoking to him, as the sin of idolatry was; and cause his anger to rise to such a degree, as to suffer them to be carried captive from the land he gave them to inherit; and which afterwards, was the case, and that through learning the manners and customs of these people; see ( Psalms 106:34-42 ) .

Deuteronomy 20:18 In-Context

16 But what about the cities the LORD your God is giving you as your own? Kill everything in those cities that breathes.
17 Completely destroy them. Wipe out the Hittites, Amorites, Canaanites, Perizzites, Hivites and Jebusites. That's what the LORD your God commanded you to do.
18 If you don't destroy them, they'll teach you to follow all of the things the LORD hates. He hates the way they worship their gods. If you do those things, you will sin against the LORD your God.
19 Suppose you surround a city and get ready to attack it. And suppose you fight against it for a long time in order to capture it. Then don't chop its trees down and destroy them. You can eat their fruit. So don't cut them down. The trees of the field aren't people. So why should you attack them?
20 But you can cut down trees that you know aren't fruit trees. You can build war machines out of their wood. You can use them until you capture the city you are fighting against.
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