Numbers 8:22
After this, the descendants of Levi entered into their work of service at the appointed place, in the presence of Aaron and his sons. They did everything that the LORD commanded Moses concerning the descendants of Levi.
Numbers 8:15
"After this, the descendants of Levi are to come to serve at the appointed place of meeting, after you have purified them and presented them as wave offerings,
2 Chronicles 30:15-17
Then they slaughtered the Passover lamb on the fourteenth day of the second month.
2 Chronicles 30:27
After this, the priests arose, blessed the people, and their voices were heard in prayer all the way to heaven, where God resides in holiness.
2 Chronicles 31:2
Hezekiah appointed the priestly divisions and the divisions of the descendants of Levi, each according to their service duties, including both priests and descendants of Levi who offered morning and evening burnt offerings, peace offerings, general ministry, thanksgiving, and praise in the gateways to the LORD's campgrounds.
2 Chronicles 35:8-15
His officers contributed a voluntary offering to the people, the priests, and the descendants of Levi. Hilkiah, Zechariah, and Jehiel, the officials who supervised God's Temple, gave 2,600 animals from their flocks to the priests for Passover offerings, along with 300 bulls.