NET

31 They have also built places of worship in a place called Topheth in the Valley of Ben Hinnom so that they can sacrifice their sons and daughters by fire. That is something I never commanded them to do! Indeed, it never even entered my mind to command such a thing!

Darby

31 And they have built the high places of Topheth, which is in the valley of the son of Hinnom, to burn their sons and their daughters in the fire; which I commanded not, neither did it come up into my mind.

KJV

31 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.