Charles Spurgeon Commentary Jeremiah 32:34-35

"But they set their abominations in the house which is called by my name, to defile it. And they built the high places of Baal, which are in the valley of the son of Hinnom, to cause their sons and their daughters to pass through [the fire] unto Molech; which I commanded them not, neither came it into my mind, that they should do this abomination, to cause Judah to sin." — Jeremiah 32:34-35 (ASV)

But they set their abominations in the house, which is called by my name, to defile it. And they built the high places of Baal, which are in the valley of the son of Hinnom, to cause their sons and their daughters to pass through the fire unto Molech;

There was nothing so terribly bad that they would not do it; there was nothing so unnatural, so detestable, that they would not invariably practice it.

But they set their abominations in the house, which is called by my name, to defile it. And they built the high places of Baal, which are in the valley of the son of Hinnom, to cause their sons and their daughters to pass through the fire unto Molech; which I commanded them not, neither came it into my mind, that they should do this abomination, to cause Judah to sin.

If God had commanded them to offer up their children, they would have stood aghast at such cruelty; but they willingly sacrificed them to Molech in opposition to his will.