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.
TSK
TSK · 2 Chronicles 35:10
Treasury of Scripture Knowledge references in NET.
Ezra 6:18
TSK
They appointed the priests by their divisions and the Levites by their divisions over the worship of God at Jerusalem, in accord with the book of Moses.