Jeremiah 7:32

Because of this gross sin, the Lord promised that in the future the site would have a new name: the Valley of Slaughter. Jesus used this valley as a figure for hell, "Gehenna" being a transliterated form of the Greek name of this site (Matthew 5:22; Matthew 5:29-30; Matthew 10:28; Matthew 18:9; Matthew 23:15; Matthew 23:33; et al.). This name, the Valley of Slaughter, would be appropriate because so many of the idolatrous Israelites would die there in the coming siege. The enemy would fill this valley with Israelite bodies because it would be an easy way to dispose of their corpses. In ancient Near Eastern culture, to die and remain unburied was an insult as well as a tragedy (Jeremiah 14:16; Deuteronomy 28:26; Psalms 79:3; Isaiah 18:6). The Law prescribed that even criminals should be buried (Deuteronomy 21:23).

"All too appropriately, the place where parents tried to buy their own safety at their children’s terrible expense, would become an open grave for their own remains (32-33)." [Note: Kidner, p. 51.]