Go and smite Amalek, and utterly destroy all that they have, &c. This heavy sentence was pronounced against them long before, (Exodus 17:14,) and renewed at the Israelites' entrance into Canaan, with a charge not to forget it, (Deuteronomy 25:19,) and now ordered to be put in execution. Slay both man and woman, infant and suckling We are to consider these orders of God, given in Scripture, for the slaying the innocent with the guilty, even children and sucklings, who could have done no harm, in the same light as we do a plague or earthquake, or any other of God's judgments in the earth, whereby the guiltless are cut off with the guilty; the reason of which, perhaps, may be, that the guilty, in such calamities, are more grievously afflicted and punished, by the cutting off their harmless children, than they would be by any thing that could befall themselves. And God can, and certainly does, crown elsewhere the innocent with happiness, great enough to reward them amply for the evils that fall upon them here. And, without doubt, every infant, however much its death may be lamented by its parents, receives a great favour and blessing from God by having death bestowed upon it in its infancy; as it is taken away from all the miseries of this life, in order to be made perfectly and eternally happy.
The reason, perhaps, of God's ordering the beasts to be all killed, upon this and some other occasions of this sort, was, that the neighbouring nations might know that these terrible executions of the Israelites upon some particular nations, did not proceed from any views of profit or interest to themselves, but were done in obedience to the commands of the Lord of all, to punish those whose iniquity was full. For, had the Israelites been allowed to spare the cattle (which were then the chief riches of the nations) on these occasions, they would have appeared rather as the murderers of these people, for the sake of their riches, than the ministers of God's wrath, to punish nations whose abominations made them ripe for destruction.