Yirmeyah 19:5

5 They have built also the high places of Baal, to burn their banim with eish for olot unto Baal, which I commanded not, nor spoke it, neither came it into My lev;

Yirmeyah 19:5 Meaning and Commentary

Jeremiah 19:5

They have also built the high places of Baal
Or, they have even built and so the words explain what is before suggested of their idolatry; these were the temples in which they placed his image, and the altars on which they sacrificed to him; as follows: to burn their sons with fire, [for] burnt offerings unto Baal;
the same idol that is sometimes called Moloch, the names being much of the same signification; the one signifying a "lord" or "master"; the other a king; and to the idol under each name they burned their children with fire, and offered them as burnt offerings unto it; which was a most cruel and barbarous way of sacrificing. Some think they only caused them to pass through two fires; but the text is express for it, that they burnt them with fire, and made burnt offerings of them, as they did with slain beasts. It seems very likely that they did both: which I commanded not;
in my law, as the Targum adds; and which was intimation enough to avoid it; though this was not all, he expressly forbad it, ( Leviticus 20:2-5 ) ; nor spake [it], neither came [it] into my mind;
and it is marvellous it should ever enter into the heart of man; none but Satan himself could ever have devised such a way of worship.

Yirmeyah 19:5 In-Context

3 And say, Hear ye the Devar Hashem, O melachim of Yehudah, and inhabitants of Yerushalayim; Thus saith Hashem Tzva’os, the Elohei Yisroel; Behold, I will bring ra’ah upon this makom, the which whosoever heareth, his oznayim shall tingle.

4 Because they have forsaken Me, and have made this an alien place, and have burned [offerings] in it unto elohim acherim, whom neither they nor avoteihem have known, nor the melachim of Yehudah, and have filled this makom with the dahm of innocents;

5 They have built also the high places of Baal, to burn their banim with eish for olot unto Baal, which I commanded not, nor spoke it, neither came it into My lev;

6 Therefore, hinei, the days come, saith Hashem, that this makom shall no more be called Tophet, nor Gey Ben-Hinnom, but The Valley of Slaughter.

7 And I will make void the etzah of Yehudah and Yerushalayim in this makom; and I will cause them to fall by the cherev before their oyevim, and by the hands of them that seek their nefesh; and their nevelah (carcasses) will I give to be food for the oph HaShomayim, and for the behemat ha’aretz.