Molek or Moloch in Hinnom

American Standard Version Chapter 33

Hinnom

2 Chronicles 33:6 KJV 1900

And he caused his children to pass through the fire in the valley of the son of Hinnom: also he observed times, and used enchantments, and used witchcraft, and dealt with a familiar spirit, and with wizards: he wrought much evil in the sight of the Lord, to provoke him to anger.

2 Kings 23:10 KJV 1900

And he defiled Topheth, which is in the valley of the children of Hinnom, that no man might make his son or his daughter to pass through the fire to Molech.

Jeremiah 7:31 KJV 1900

And they have built the high places of Tophet, which is in the valley of the son of Hinnom, to burn their sons and their daughters in the fire; which I commanded them not, neither came it into my heart.

2 Chronicles 28:3 KJV 1900

Moreover he burnt incense in the valley of the son of Hinnom, and burnt his children in the fire, after the abominations of the heathen whom the Lord had cast out before the children of Israel.

2011. הִנֹּם‎ hinnōm: A proper noun designating Hinnom, the valley that lies west and south of the hill of Jerusalem. It became a place known for idolatrous practices located there (2 Kgs. 23:10; 2 Chr. 28:3; Jer. 7:31), especially the worship of the god Molech. It runs together with the Kidron Valley on the south end of the City of David.

Baker, W. and Carpenter, E.E. (2003) The complete word study dictionary: Old Testament.