Ezekiel 44:5-9

5The LORD said to me: “Son of man, pay attention; look carefully with your eyes and listen closely with your ears to everything I tell you concerning all the statutes and laws of the house of the LORD. Take careful note of the entrance to the temple, along with all the exits of the sanctuary.

6Tell the rebellious house of Israel that this is what the Lord GOD says: ‘I have had enough of all your abominations, O house of Israel. 7In addition to all your other abominations, you brought in foreigners uncircumcised in both heart and flesh to occupy My sanctuary; you defiled My temple when you offered My food—the fat and the blood; you broke My covenant. 8And you have not kept charge of My holy things, but have appointed others to keep charge of My sanctuary for you.’

9This is what the Lord GOD says: No foreigner uncircumcised in heart and flesh may enter My sanctuary—not even a foreigner who lives among the Israelites.