2 Chronicles 29:34
Because there weren't enough priests, they were unable to prepare all the burnt offerings until other priests came forward after having consecrated themselves, so their descendant of Levi relatives assisted them until the services were complete. (The descendants of Levi had been more conscientious in consecrating themselves than had been the priests.)
2 Chronicles 30:3
but they had been unable to celebrate it then because not enough priests had consecrated themselves and the people had not yet been gathered together in Jerusalem.
2 Chronicles 35:11
They slaughtered the Passover lamb, and the priests poured out the blood that they had received from the lambs while the descendants of Levi flayed the sacrifices.
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,
Numbers 8:19
I've set the descendants of Levi apart from the Israelis so that Aaron and his sons would work in service at the appointed place of meeting, making atonement on behalf of the Israelis so that there won't be a plague among the Israelis whenever they approach the sanctuary."
Numbers 18:3
They are to take care of your concerns and all the responsibilities involved with the tent. But they're not to approach the holy vessels or the altar. That way, neither you nor they will die.
Numbers 18:6-7
Notice that I've taken your brothers, the descendants of Levi, from among the Israelis, giving them to you as a gift from the LORD to perform the service of the Tent of Meeting.
1 Chronicles 29:17
And I know, God, that it is you who searches the heart and you who finds pleasure in righteousness. With a righteous heart I have freely given all these things, and now I have seen all of these people of yours giving freely and joyfully to you!
2 Chronicles 29:5
and told them,
2 Chronicles 30:16-17
The priests and descendants of Levi felt ashamed of themselves, so they consecrated themselves and brought burnt offerings to the LORD's Temple. Then they took their customary places, as the Law of Moses the man of God prescribes, and the priests sprinkled the blood that they were given by the descendants of Levi.
Psalm 7:10
God is my shield, the one who delivers the upright in heart.
Psalm 26:6
I wash my hands innocently. I go around your altar, LORD,
Psalm 94:15
Righteousness will be restored with justice, and all the pure of heart will follow it.