And I polluted them in their own {m} gifts, in that they caused to pass through the fire all the firstborn, that I might make them desolate, to the end that they might know that I am the LORD.

(m) I condemned those things, and counted them as abominable, which they thought had been excellent and to have declared most zeal, Lu 16:15 for that which God required as most excellent they gave to their idols.

Wesley's Notes

20:26 Polluted - I permitted them to pollute themselves. Might know - Be forced to own, that the Lord is a mighty king in punishing those that would not have him a gracious king in governing them.

Jamieson-Fausset-Brown Bible Commentary

26. I polluted them-not directly; "but I judicially gave them up to pollute themselves." A just retribution for their "polluting My sabbaths" (Eze 20:24). This Eze 20:26 is explanatory of Eze 20:25. Their own sin I made their punishment.

caused to pass through the fire-Fairbairn translates, "In their presenting (literally, 'the causing to pass over') all their first-born," namely, to the Lord; referring to the command (Ex 13:12, Margin, where the very same expression is used). The lustration of children by passing through the fire was a later abomination (Eze 20:31). The evil here spoken of was the admixture of heathenish practices with Jehovah's worship, which made Him regard all as "polluted." Here, "to the Lord" is omitted purposely, to imply, "They kept up the outward service indeed, but I did not own it as done unto Me, since it was mingled with such pollutions." But English Version is supported by the similar phraseology in Eze 20:31, see on [1052]Eze 20:31. They made all their children pass through the fire; but he names the first-born, in aggravation of their guilt; that is, "I had willed that the first-born should be redeemed as being Mine, but they imposed on themselves the cruel rites of offering them to Molech" (De 18:10).

might know . the Lord-that they may be compelled to know Me as a powerful Judge, since they were unwilling to know Me as a gracious Father.

Matthew Henry's Concise Commentary

20:10-26. The history of Israel in the wilderness is referred to in the new Testament as well as in the Old, for warning. God did great things for them. He gave them the law, and revived the ancient keeping of the sabbath day. Sabbaths are privileges; they are signs of our being his people. If we do the duty of the day, we shall find, to our comfort, it is the Lord that makes us holy, that is, truly happy, here; and prepares us to be happy, that is, perfectly holy, hereafter. The Israelites rebelled, and were left to the judgments they brought upon themselves. God sometimes makes sin to be its own punishment, yet he is not the Author of sin: there needs no more to make men miserable, than to give them up to their own evil desires and passions.