2-kings 23:10

He defiled Topheth - St. Jerome says that Topheth was a fine and pleasant place, well watered with fountains, and adorned with gardens. The valley of the son of Hinnom, or Gehenna, was in one part; here it appears the sacred rites of Molech were performed, and to this all the filth of the city was carried, and perpetual fires were kept up in order to consume it. Hence it has been considered a type of hell; and in this sense it is used in the New Testament.

It is here said that Josiah defiled this place that no man might make his son or his daughter to pass through the fire. He destroyed the image of Molech, and so polluted the place where he stood, or his temple, that it was rendered in every way abominable. The rabbins say that Topheth had its name from תף toph, a drum, because instruments of this kind were used to drown the cries of the children that were put into the burning arms of Molech, to be scorched to death. This may be as true as the following definition: "Topheth, or the valley of the son of Hinnom, was a place near Jerusalem, where the filth and offal of the city were thrown, and where a constant fire was kept up to consume the wretched remains of executed criminals. It was a human shambles, a public chopping-block, where the arms and legs of men and women were quartered off by thousands." Query, On what authority do such descriptions rest?

The word Topheth, or Topher - variously derived from toph, "a drum" or "tabour," because the cries of the sacrificed children were drowned by the noise of such instruments; or, from a root taph or toph, meaning "to burn" - was a spot in the valley of Hinnom (marginal reference note). The later Jewish kings, Manasseh and Amon (or, perhaps, Ahaz, 2 Chronicles 28:3), had given it over to the Moloch priests for their worship; and here, ever since, the Moloch service had maintained its ground and flourished (marginal references).

23:10 Topheth - Very near Jerusalem, where was the image of Molech, to whom some sacrificed their children, burning them in the fire, others dedicated them, making them pass between two fires. It is supposed to be called Topheth, from toph, a drum; because they beat drums at the burning of the children, that their shrieks might not be heard.