'Fixed' in the Bible

And the king said to me (the queen being seated by his side), How long will your journey take, and when will you come back? So the king was pleased to send me, and I gave him a fixed time.

For the holy bread, and for the regular meal offering and the regular burned offering on the Sabbaths and at the new moon and the fixed feasts, and for the sin-offerings to take away the sin of Israel, and for all the work of the house of our God.

Likewise we cast lots for the supply of wood among the priests, the Levites and the people so that they might bring it to the house of our God, according to our fathers’ households, at fixed times annually, to burn on the altar of the Lord our God, as it is written in the law;

And on that day certain men were put over the rooms where the things which had been given were stored, for the lifted offerings and the first-fruits and the tenths, and to take into them the amounts, from the fields of every town, fixed by the law for the priests and the Levites: for Judah was glad on account of the priests and the Levites who were in their places.

So I made them clean from all strange people, and had regular watches fixed for the priests and for the Levites, everyone in his work;

And for the wood offering, at fixed times, and for the first fruits. Keep me in mind, O my God, for good.