Joshua 6:21

As for the infants, they were guilty of original sin, and otherwise at the disposal of their creator; but if they had been wholly innocent, it was a great favour to them to take them away in infancy, rather than reserve them to those dreadful calamities which those who survived them were liable to.

But, being appointed by the righteous Judge of heaven and earth to do it, who is not unrighteous in taking vengeance, they are to be applauded in doing it as the faithful ministers of his justice. Work for God was then bloody work; and cursed was he that did it deceitfully, keeping back his sword from blood, Jer. xlviii.

The Lord divided the Jordan that His people might pass through dry-shod. This miracle greatly dispirited the Canaanites, and so prepared the way for an easy triumph for the invading Israelites. You would have naturally expected that the Lord would have bid His people avail themselves immediately of this terror to strike a heavy blow at once, and press on with might and main before the enemy could take a breath and so sweep the land clear of the adversaries in a single campaign. But it was not so.

The Lord divided the Jordan that His people might pass through dry-shod. This miracle greatly dispirited the Canaanites, and so prepared the way for an easy triumph for the invading Israelites. You would have naturally expected that the Lord would have bid His people avail themselves immediately of this terror to strike a heavy blow at once, and press on with might and main before the enemy could take a breath and so sweep the land clear of the adversaries in a single campaign. But it was not so. Instead of immediate activity, the children of Israel pitched their tents at Gilgal and there tarried for a considerable season. For God is in no hurry. His purposes can be accomplished without haste, and though He would have us redeem the time because our days are evil, yet in His eternity He can afford to wait and by His wisdom He so orders His delays that they prove to be far better than our hurries. Why were the people to delay? That they might be obedient to commands which had been forgotten. In the desert, for many reasons, circumcision and the Passover had been neglected. They were not visited with any chastisement on account of this neglect, for the Lord considered their position and condition, and winked at their error. But before He would use them He would have them fully obedient to His will. It cannot be expected that God should tolerate disobedient servants, and therefore they must stay awhile, till they had been attentive to the two great precepts of the Mosaic Covenant. Dear Friends, let us pause and ask ourselves, as Believers, whether we have been in all respects conscientiously attentive to our Master's commands. If not, we may not expect Him to send a blessing to the Church or to the world through us, until first of all we have yielded our willing obedience to that which He has prescribed for us.

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.