Ezekiel 32:29

“There is Edom, her kings and all her princes, who in their might are laid with those who are slain by the sword. They will lie with the uncircumcised and with those who go down to the pit.”

Inscriptions tell us that Edom became a vassal-state of Assyria in around 736 BC. They may well have assisted them against Israel and Judah which would have helped to nurture the undying hatred shown to them by Israel (Psalms 137:7; Isaiah 34:5; Isaiah 63:1; Jeremiah 49:7; Lamentations 4:21; Joel 3:19; Amos 1:11; Obadiah 1:7). It seems that they had a policy of turning back Israelites when they fled for refuge from invading enemies, a callous and cynical attitude (Ezekiel 35:5). They too finally suffered at the hands of the Babylonians. They are probably mentioned here because of Israel's undying hatred. They have joined their erstwhile masters. They probably practised circumcision, but like Egypt they joined the uncircumcised.