'Servant' in the Bible

And Moses said to Yahweh, "Why have you brought trouble to your servant? Why have I not found favor in your eyes, that the burdens of all these people have been placed on me?

Not so with my servant Moses; in all my house he [is] faithful.

I will speak to him mouth to mouth, [in] clearness, not in riddles; and he will look at the form of Yahweh. Why were you not afraid to speak against my servant, against Moses?"

But my servant Caleb, because another spirit was with him, he remained true after me, and I will bring him into the land that {he entered}, and his offspring will take possession of it.