What does 2 Chronicles 29:21 mean?

They brought seven bulls, seven rams, seven lambs, and seven male goats as offerings for the kingdom, the sanctuary, and Judah. The king told the priests, who were descendants of Aaron, to offer them on the Lord’s altar. 2 Chronicles 29:21 - Modern Text Bible

(These animals were offered as sacrifices to make things right for the whole nation, the temple, and the people. The priests handled the offerings as the law required.)