The Jerusalem Talmud reported that Rabbi Tanhuma in the name of Rabbi Lazar deduced from that the Levites' singing made atonement for the Israelites. A Baraita taught that the priests did the sacrificial service, the Levites sang on the platform while the priests offered the sacrifices, and the Israelites served as emissaries of the entire people when they attended the sacrifices. And another Baraita reported that Rabbi Simeon ben Eleazar taught that priests, Levites, Israelites, and song were all essential for an offering. Rabbi Avin said in the name of Rabbi Eleazar that provided support for this when it says, "And all the congregation prostrated themselves," these being the Israelites; "and the singers sang," these being the Levites; "and the trumpeters sounded," these being the priests; and the conclusion of the verse, "all this continued until the burnt-offering was finished," demonstrated that all were essential to complete the offering. Rabbi Tanhuma said in the name of Rabbi Lazar that one may learn this from "And I have given the Levites," these being the Levites; "to do the service of the children of Israel in the tent of meeting," these being the priests; "and to make atonement for the children of Israel," this being brought about by the singing; "through the children of Israel coming near to the sanctuary," these being the Israelites.