Charles Ellicott Commentary 2 Chronicles 30:16

"And they stood in their place after their order, according to the law of Moses the man of God: the priests sprinkled the blood [which they received] of the hand of the Levites." — 2 Chronicles 30:16 (ASV)

In their place. — Omdâm. This word is used in this sense only in Daniel, Chronicles, and Nehemiah (Compare to 2 Chronicles 34:31; 2 Chronicles 35:10).

After their manner — that is, “according to their order” (1 Chronicles 6:31).

According to the law ... of God. — Another reference to the Pentateuchal legislation (See 2 Chronicles 23:18; 2 Chronicles 24:6; 2 Chronicles 14:4; and 2 Chronicles 17:9).

Sprinkled ... Levites. — Rather, sprinkling the blood from the hand of the Levites. On this occasion the Levites, and not the laymen who presented the victims, slew the lambs and handed the blood to the priests to be dashed against the altar. The reason for this breach of the ordinary rule is given in the next verse.