They brought seven bulls, seven rams, seven lambs and seven male goats as a sin offering for the kingdom, for the sanctuary and for Judah; and he told the priests, the sons of Aaron, to offer them on the altar of Yahweh.
In context
19And all the vessels that King Ahaz threw aside during his reign, in his unfaithfulness, we have made ready and consecrated. They are there now, in front of the altar of Yahweh.” 20King Hezekiah rose early, gathered the officers of the city and went up to the house of Yahweh. 21They brought seven bulls, seven rams, seven lambs and seven male goats as a sin offering for the kingdom, for the sanctuary and for Judah; and he told the priests, the sons of Aaron, to offer them on the altar of Yahweh. 22So they slaughtered the cattle, and the priests received the blood and threw it against the altar; they slaughtered the rams and threw the blood against the altar; they slaughtered the lambs and threw the blood against the altar. 23Then they brought the goats of the sin offering before the king and the assembly, and they laid their hands on them.