'Keep' in the Bible

Thus saith Jehovah of hosts: If thou wilt walk in my ways, and if thou wilt keep my charge, then thou also shalt judge my house, and shalt also keep my courts, and I will give thee a place of access among these that stand by.

And it shall come to pass, that every one that is left of all the nations that came against Jerusalem shall go up from year to year to worship the King, Jehovah of hosts, and to keep the feast of tabernacles.

And if the family of Egypt go not up, and come not, neither'shall it be upon them; there shall be the plague wherewith Jehovah will smite the nations that go not up to keep the feast of tabernacles.

This shall be the punishment of Egypt, and the punishment of all the nations that go not up to keep the feast of tabernacles.