Ezekiel 44:9

5The LORD said to me, “Son of man, mark well, and see with your eyes, and hear with your ears all that I tell you concerning all the ordinances of the LORD’s house and all its laws; and mark well the entrance of the house, with every exit of the sanctuary.

6You shall tell the rebellious, even the house of Israel, ‘The Lord GOD says: “You house of Israel, let that be enough of all your abominations,

7in that you have brought in foreigners, uncircumcised in heart and uncircumcised in flesh, to be in my sanctuary, to profane it, even my house, when you offer my bread, the fat and the blood; and they have broken my covenant, to add to all your abominations.

8You have not performed the duty of my holy things; but you have set performers of my duty in my sanctuary for yourselves.”

9The Lord GOD says, “No foreigner, uncircumcised in heart and uncircumcised in flesh, shall enter into my sanctuary, of any foreigners who are among the children of Israel.

10“‘“But the Levites who went far from me when Israel went astray, who went astray from me after their idols, they will bear their iniquity.

11Yet they shall be ministers in my sanctuary, having oversight at the gates of the house, and ministering in the house. They shall kill the burnt offering and the sacrifice for the people, and they shall stand before them to minister to them.

12Because they ministered to them before their idols, and became a stumbling block of iniquity to the house of Israel, therefore I have lifted up my hand against them,” says the Lord GOD, “and they will bear their iniquity.

13They shall not come near to me, to execute the office of priest to me, nor to come near to any of my holy things, to the things that are most holy; but they will bear their shame and their abominations which they have committed.