Ezekiel 44:7; Ezekiel 44:15

7 In addition to all your other detestable practices, you brought foreigners uncircumcised in heart and flesh into my sanctuary, desecrating my temple while you offered me food, fat and blood, and you broke my covenant.

15 “ ‘But the Levitical priests, who are descendants of Zadok and who guarded my sanctuary when the Israelites went astray from me, are to come near to minister before me; they are to stand before me to offer sacrifices of fat and blood, declares the Sovereign LORD.