Charles Ellicott Commentary Jeremiah 7:32

"Therefore, behold, the days come, saith Jehovah, that it shall no more be called Topheth, nor The valley of the son of Hinnom, but The valley of Slaughter: for they shall bury in Topheth, till there be no place [to bury]." — Jeremiah 7:32 (ASV)

Till there be no place. — Better, because there is no room — that is, for lack of space the dead should be buried even in the spot which the worshippers of Molech regarded as sacred, and the worshippers of Jehovah as accursed, and which both therefore would willingly avoid using as a place of burial.