2 Chronicles 29:20-22

20Then King Hezekiah arose early and assembled the officials of the city, and went up to the house of the Lord.

21They brought seven bulls, seven rams, seven lambs, and seven male goats for a sin offering for the kingdom, the sanctuary, and Judah. He commanded the priests, the sons of Aaron, to offer them on the altar of the Lord.

22So they slaughtered the bulls, and the priests took the blood and sprinkled it on the altar. They also slaughtered the rams and sprinkled the blood on the altar; then they slaughtered the lambs and sprinkled the blood on the altar.