2 Chronicles 29:24

29:24 Then the priests slaughtered them. They offered their blood as a sin offering on the altar to make atonement for all Israel, because the king had decreed that the burnt sacrifice and sin offering were for all Israel.

2 Chronicles 30:16

30:16 They stood at their posts according to the regulations outlined in the law of Moses, the man of God. The priests were splashing the blood as the Levites handed it to them.