'Keep' in the Bible

"Thus says Yahweh of Armies: 'If you will walk in my ways, and if you will follow my instructions, then you also shall judge my house, and shall also keep my courts, and I will give you a place of access among these who stand by.

I said to them, "If you think it best, give me my wages; and if not, keep them." So they weighed for my wages thirty pieces of silver.

It will happen that everyone who is left of all the nations that came against Jerusalem will go up from year to year to worship the King, Yahweh of Armies, and to keep the feast of tents.

If the family of Egypt doesn't go up, and doesn't come, neither will it rain on them. This will be the plague with which Yahweh will strike the nations that don't go up to keep the feast of tents.

This will be the punishment of Egypt, and the punishment of all the nations that don't go up to keep the feast of tents.