'Servant' in the Bible

“But it is not so with My servant Moses;He is entrusted and faithful in all My house.

“With him I speak mouth to mouth [directly],Clearly and openly and not in riddles;And he beholds the form of the Lord.Why then were you not afraid to speak against My servant Moses?”

But My servant Caleb, because he has a different spirit and has followed Me fully, I will bring into the land into which he entered, and his descendants shall take possession of it.

On the seventh day you shall have a holy [summoned] assembly; you shall do no laborious work.