'Requirement' in the Bible

{as was the daily requirement}, to offer up according to the commandments of Moses for Sabbaths, new moon festivals, and the three {annual} feasts: the Feast of Unleavened Bread, the Feast of Weeks, and the Feast of Booths.

And in accord with the ordinance of David his father he appointed working groups of priests for their service, Levites for their responsibilities for praise and cultic service before the priests {according to the daily requirement}, and the gatekeepers in their working groups, gate by gate. For thus David the man of God had commanded.

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.

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.