When thou comest nigh unto a city to fight against it, then proclaim peace unto it. Proclaim peace unto it - Interpreters are greatly divided concerning the objects of this law. The text, taken in connection with the context, (see Deuteronomy 20:15-18), appears to state that this proclamation or offer of peace to a city is only to be understood of those cities which were situated beyond the limits of the seven anathematized nations, because these latter are commanded to be totally destroyed. Nothing can be clearer than this from the bare letter of the text, unless some of the words, taken separately, can be shown to have a different meaning. For the common interpretation, the following reasons are given.
God, who knows all things, saw that they were incurable in their idolatry; that the cup of their iniquity was full; and as their Creator, Sovereign, and Judge, he determined to destroy them from off the face of the earth, "lest they should teach the Israelites to do after all their abominations," Deuteronomy 20:18. After all, many plausible arguments have been brought to prove that even these seven Canaanitish nations might be received into mercy, provided they,
1. Renounced their idolatry;
2. Became subject to the Jews; and,
3. Paid annual tribute: and that it was only in case these terms were rejected, that they were not to leave alive in such a city any thing that breathed, Deuteronomy 20:16.