Jer 7:30

“(Verse 30, 31.) Because the sons of Judah have done evil in my sight, says the Lord: they have set up their stumbling blocks in the house where my name is invoked, to defile it. And they have built the high places (or altar) of Topheth, which is in the Valley of the Son of Hinnom, to burn their sons and their daughters in fire: which I did not command, nor did it come into my mind. We learn in the beginning of Ezekiel that the sons of Judah put a statue of Baal in the Temple of God. However, the high places, which are called Bamoth in Hebrew, or the altar of Topheth, which is in the Valley of the Sons of Hinnom, signify that place which is watered by the springs of Siloam; and it is pleasant and wooded, and even today offers delights of gardens. However, the error of paganism occupied all the provinces, so that they would sacrifice victims on the tops of mountains and in the most beautiful groves, and all the superstitions of corrupt religion would be observed. Topheth, in the Hebrew language, is interpreted as "width"; and it is reported in the book of Joshua the son of Nun concerning this place, which is in the Valley of the Sons of Hinnom, and in Hebrew it is called Gehenna (γέεννα), for it signifies a gorge, that is, a valley; and Hinnom either signifies a man's name or "favor". And the Hebrews report that this place is called Gehenna, because all the people of the Jews will perish there, offending God. In this place they also consecrated their sons with fire to the idols, or offered them as a burnt offering, which God did not command them, nor did the Law prescribe any such thing. If Jephthah offered his virgin daughter to God, it is not the sacrifice that pleases, but the intention of the offerer. And if a dog, or a donkey, or any unclean animal had come first to meet the father returning from the slaughter of the enemies, he should not have offered it to God.”