'Requirement' in the Bible

He followed the daily requirement for offerings according to the commandment of Moses for Sabbaths, New Moons, and the three annual appointed festivals: the Festival of Unleavened Bread, the Festival of Weeks, and the Festival of Booths.

According to the ordinances of his father David, he appointed the divisions of the priests over their service, of the Levites over their responsibilities to offer praise and to minister before the priests following the daily requirement, and of the gatekeepers by their divisions with respect to each gate, for this had been the command of David, the man of God.

They offer burnt offerings to Yahweh {every morning} and {every evening}, sweet spices of incense, and the rows of bread upon the pure table. And the golden lampstand with its lamps [they] keep kindled {every evening}, for we are keeping the requirement of Yahweh our God, but you yourselves have forsaken him.

No one is to enter the Lord’s temple but the priests and those Levites who serve; they may enter because they are holy, but all the people are to obey the requirement of the Lord.

And Jeremiah uttered a lament for Josiah, and all the male and female singers have spoken in their laments about Josiah to this day. And they made them a requirement in Israel, and behold, they are written in the laments.