Matthew Henry on Deuteronomy 20:10–end
They are here directed what method to take in dealing with the cities (these only are mentioned, Deu 20:10, but doubtless the armies in the field, and the nations they had occasion to deal with, are likewise intended) upon which they made war. They must not make a descent upon any of their neighbours till they had first given them fair notice, by a public manifesto, or remonstrance, stating the ground of their quarrel with them. In dealing with the worst of enemies, the laws of justice and honour must be observed; and, as the sword must never be taken in hand without cause, so not without cause shown. War is an appeal, in which the merits of the cause must be set forth.
I. Even to the procla…
Read the whole note in the consoleJamieson-Fausset-Brown on Deuteronomy 20:10
When thou comest nigh unto a city to fight against it, then proclaim peace unto it--An important principle is here introduced into the war law of Israel regarding the people they fought against and the cities they besieged. With "the cities of those people which God doth give thee" in Canaan, it was to be a war of utter extermination (Deu 20:17-18). But when on a just occasion, they went against other nations, they were first to make a proclamation of peace, which if allowed by a surrender, the people would become dependent [Deu 20:11], and in the relation of tributaries the conquered nations would receive the highest blessings from alliance with the chosen people; they would be brought to t…
Read the whole note in the consoleJohn Gill on Deuteronomy 20:16
But of the cities of those people, which the Lord thy God doth give thee for an inheritance,.... The cities of the seven nations, six of which are mentioned by name in the next verse:
thou shalt save alive nothing that breatheth; the reason of this severity was because of their wickedness, the capital crimes and gross abominations they were guilty of, and for which they deserved to die; and on account whereof they were reserved to this destruction, when the measure of their iniquities was full, such as idolatry, incest, witchcraft, soothsaying, necromancy, &c. see Leviticus 18:3.