Kings IV 23:10

10 And he defiled Tapheth which is in the valley of the son of Ennom, for a man to cause his son or his daughter to pass through fire to Moloch.

Kings IV 23:10 In-Context

8 And he brought up all the priest from the cities of Juda, and defiled the high places where the priests burned incense, from Gaebal even to Bersabee; and he pulled down the house of the gates that was by the door of the gate of Joshua the ruler of the city, on a man's left hand at the gate of the city.
9 Only the priests of the high places went not up to the altar of the Lord in Jerusalem, for they only ate leavened bread in the midst of their brethren.
10 And he defiled Tapheth which is in the valley of the son of Ennom, for a man to cause his son or his daughter to pass through fire to Moloch.
11 And he burned the horses which the king of Juda had given to the sun in the entrance of the house of the Lord, by the treasury of Nathan the king's eunuch, in the suburbs; and he burned the chariot of the sun with fire.
12 And the altars that were on the roof of the upper chamber of Achaz, which the kings of Juda had made, and the altars which Manasses had made in the two courts of the house of the Lord, did the king pull down and forcibly remove from thence, and cast their dust into the brook of Kedron.

Footnotes 1

The Brenton translation of the Septuagint is in the public domain.