Matthew Henry on Joshua 6:17–end
The people had religiously observed the orders given them concerning the besieging of Jericho, and now at length Joshua had told them (Jos 6:16), "The Lord hath given you the city, enter and take possession." Accordingly in these verses we have,
I. The rules they were to observe in taking possession. God gives it to them, and therefore may direct it to what uses and intents, and clog it with what provisos and limitations he thinks fit. It is given to them to be devoted to God, as the first and perhaps the worst of all the cities of Canaan. 1. The city must be burnt, and all the lives in it sacrificed without mercy to the justice of God. All this they knew was included in those words, Jos 6:1…
Read the whole note in the consoleJamieson-Fausset-Brown on Joshua 6:20
THE WALLS FALL DOWN. (Jos 6:20-21)
So the people shouted when the priests blew with the trumpets--Towards the close of the seventh circuit, the signal was given by Joshua, and on the Israelites' raising their loud war cry, the walls fell down, doubtless burying multitudes of the inhabitants in the ruins, while the besiegers, rushing in, consigned everything animate and inanimate to indiscriminate destruction (Deu 20:16-17). Jewish writers mention it as an immemorial tradition that the city fell on the Sabbath. It should be remembered that the Canaanites were incorrigible idolaters, addicted to the most horrible vices, and that the righteous judgment of God might sweep them away by the sword…
Read the whole note in the consoleAdam Clarke on Joshua 6:21
They utterly destroyed - both man, and woman, etc. - As this act was ordered by God himself, who is the Maker and Judge of all men, it must be right: for the Judge of all the earth cannot do wrong. Nothing that breathed was permitted to live; hence the oxen, sheep, and asses, were destroyed, as well as the inhabitants.
John Gill on Joshua 6:21
And they utterly destroyed all that was in the city,.... All the inhabitants of it, by the direction of Joshua, and according to the order of the Lord, Deuteronomy 7:1; being guilty of capital crimes, which deserved death, as idolatry, incest, &c.
both men and women, young and old; neither sex nor age were spared:
and ox, and sheep, and ass, with the edge of the sword; in which creatures chiefly lay the substance of the eastern people; see Job 1:3.