'Requirements' in the Bible

" 'And if a man consecrates {some of} his property's fields for Yahweh, then your proper value shall be {in accordance with its seed requirements}: a homer of barley seed for fifty shekels of money.

But the Levites will encamp around the tabernacle of the testimony, and there will not be wrath on the community of the {Israelites}; and the Levites will keep the requirements of the tabernacle of the testimony."

Let no one enter into the house of Yahweh except the priests and the ministering Levites. They themselves may enter, for they [are] holy, but all the people shall keep the requirements of Yahweh.

On that day men were appointed for the storehouse rooms, the offerings, the first fruits, and the tithes, in order to gather in them from the fields of the cities the requirements of the law for the priests and Levites; for the joy of Judah [was] upon the priests and Levites standing there.

"Thus says Yahweh of hosts: 'If you will walk in my ways, and if you will keep my requirements, then you will judge my house, and you will also guard my courtyards, and I will give to you passageways among these that are standing here.

You have said, '[It is] useless to serve God! What [is the] gain if we keep his requirements, and if we walk as mourners {before} Yahweh of hosts?