Charles H. Spurgeon on Psalms 106:37

Yea, they sacrificed their sons and their daughters unto devils. This was being snared indeed; they were spell bound by the cruel superstition, and were carried so far as even to become murderers of their own children, in honour of the most detestable deities, which were rather devils than gods. "And shed innocent blood." The poor little ones whom they put to death in sacrifice had not been partakers of their sin, and God looked with the utmost indignation upon the murder of the innocent. "Even the blood of their sons and of their daughters, whom they sacrificed unto the idols of Canaan." Who knows how far evil will go? It drove men to be unnatural as well as ungodly. Had they but thought for a moment, they must have seen that a deity who could be pleased with the blood of babes spilt by their own sires could not be a deity at all, but must be a demon, worthy to be detested and not adored. How could they prefer such service to that of Jehovah? Did he tear their babes from their bosoms and smile at their death throes? Men will sooner wear the iron yoke of Satan than carry the pleasant burden of the Lord; does not this prove to a demonstration the deep depravity of their hearts? If man be not totally depraved, what worse would he do if he were? Does not this verse describe the ne plus ultra of iniquity? And the land was polluted with blood. The promised land, the holy land, which was the glory of all lands, for God was there, was defiled with the reeking gore of innocent babes, and by the blood red hands of their parents, who slew them in order to pay homage to devils. Alas! alas! What vexation was this to the spirit of the Lord.