Jeremiah 7:31-32

Brenton(i) 31 And they have built the altar of Tapheth, which is in the valley of the son of Ennom, to burn their sons and their daughters with fire; which I did not command them to do, neither did I design it in my heart. 32 Therefore, behold, the days come, saith the Lord, when they shall no more say, The altar of Tapheth, and the valley of the son of Ennom, but, The valley of the slain; and they shall bury in Tapheth, for want of room.