Psalms 106:38

38.And they shed He inveighs with still greater indignation against that religious phrensy which led them to sacrifice their own children, and thus to pollute the land by the shedding of innocent blood. Should any one object that Abraham is praised, because he did not withhold his only son, the answer is plain, That he did it in obedience to God’s command, so that every vestige of inhumanity was effaced by means of the purity of faith. For if obedience is better than sacrifice, (1 Samuel 15:22) it is the best rule both for morality and religion. It is an awful manifestation of God’s vindictive wrath, when the superstitious heathens, left to their own inventions, become hardened in deeds of horrid cruelty. As often as the martyrs put their life in jeopardy in defense of the truth, the incense of such a sacrifice is pleasing to God. But when the two Romans, by name Decii, (270) in an execrable manner devoted themselves unto death, that was an act of atrocious impiety. It is not without just cause, therefore, that the prophet enhances the guilt of the people by this consideration, that to the perverse mode of worshipping God, they had added excessive cruelty. Nor is there less cause for charging them with having polluted that land out of which God had commanded them to expel the ancient inhabitants, in order that he might render it the peculiar scene where he was to be worshipped. The Israelites then were doubly wicked, who, by not only defiling the land with their idolatry, but also by cruelly butchering their children, robbed God of his due, and in a manner frustrated his designs.