'Servant' in the Bible

So Moses asked the Lord, “Why have You brought such trouble on Your servant? Why are You angry with me, and why do You burden me with all these people?

Not so with My servant Moses;he is faithful in all My household.

I speak with him directly,openly, and not in riddles;he sees the form of the Lord.So why were you not afraid to speak against My servant Moses?”

But since My servant Caleb has a different spirit and has followed Me completely, I will bring him into the land where he has gone, and his descendants will inherit it.