Ezekiel 44:10-12

10But the Levites who went far from me, going astray from me after their idols when Israel went astray, shall bear their punishment.

11They shall be ministers in my sanctuary, having oversight at the gates of the temple and ministering in the temple. They shall slaughter the burnt offering and the sacrifice for the people, and they shall stand before the people, 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 sworn concerning them, declares the Lord God, and they shall bear their punishment.