They will also be in charge of the sacred loaves of bread, the flour for the grain sacrifices, the thin wafers, any offerings to be baked, and the flour mixed with olive oil. These Levites will weigh and measure these offerings.
They must also give thanks and sing praises when sacrifices are offered on each Sabbath, as well as during New Moon Festivals and other religious feasts. There must always be enough Levites on duty at the temple to do everything that needs to be done.
The Levite family leaders who were the musicians also lived at the temple. They had no other responsibilities, because they were on duty day and night.
Hezekiah divided the priests and Levites into groups, according to their duties. Then he assigned them the responsibilities of offering sacrifices to please the LORD and sacrifices to ask his blessing. He also appointed people to serve at the temple and to sing praises at the temple gates.
And a new song was being sung in front of God's throne and in front of the four living creatures and the elders. No one could learn that song, except the one hundred forty-four thousand who had been rescued from the earth.