II Chronicles 29:15-30

And they gathered their brethren, sanctified themselves, and went according to the commandment of the king, at the words of the LORD, to cleanse the house of the LORD. Then the priests went into the inner part of the house of the LORD to cleanse it, and brought out all the debris that they found in the temple of the LORD to the court of the house of the LORD. And the Levites took it out and carried it to the Brook Kidron. Now they began to sanctify on the first day of the first month, and on the eighth day of the month they came to the vestibule of the LORD. So they sanctified the house of the LORD in eight days, and on the sixteenth day of the first month they finished. Then they went in to King Hezekiah and said, “We have cleansed all the house of the LORD, the altar of burnt offerings with all its articles, and the table of the showbread with all its articles. Moreover all the articles which King Ahaz in his reign had cast aside in his transgression we have prepared and sanctified; and there they are, before the altar of the LORD.” Then King Hezekiah rose early, gathered the rulers of the city, and went up to the house of the LORD. And they brought seven bulls, seven rams, seven lambs, and seven male goats for a sin offering for the kingdom, for the sanctuary, and for Judah. Then he commanded the priests, the sons of Aaron, to offer them on the altar of the LORD. So they killed the bulls, and the priests received the blood and sprinkled it on the altar. Likewise they killed the rams and sprinkled the blood on the altar. They also killed the lambs and sprinkled the blood on the altar. Then they brought out the male goats for the sin offering before the king and the assembly, and they laid their hands on them. And the priests killed them; and they presented their blood on the altar as a sin offering to make an atonement for all Israel, for the king commanded that the burnt offering and the sin offering be made for all Israel. And he stationed the Levites in the house of the LORD with cymbals, with stringed instruments, and with harps, according to the commandment of David, of Gad the king’s seer, and of Nathan the prophet; for thus was the commandment of the LORD by His prophets. The Levites stood with the instruments of David, and the priests with the trumpets. Then Hezekiah commanded them to offer the burnt offering on the altar. And when the burnt offering began, the song of the LORD also began, with the trumpets and with the instruments of David king of Israel. So all the assembly worshiped, the singers sang, and the trumpeters sounded; all this continued until the burnt offering was finished. And when they had finished offering, the king and all who were present with him bowed and worshiped. Moreover King Hezekiah and the leaders commanded the Levites to sing praise to the LORD with the words of David and of Asaph the seer. So they sang praises with gladness, and they bowed their heads and worshiped.