'Servant' in the Bible

Thus says the Lord God: When I gather the house of Israel from the peoples among whom they are scattered, and I shall be set apart and separated and My holiness made apparent in them in the sight of the nations, then shall they dwell in their own land which I gave to My servant Jacob.

And I will raise up over them one Shepherd and He shall feed them, even My Servant David; He shall feed them and He shall be their Shepherd.

And I the Lord will be their God and My Servant David a Prince among them; I the Lord have spoken it.

And David My Servant shall be King over them, and they all shall have one Shepherd. They shall also walk in My ordinances and heed My statutes and do them.

They shall dwell in the land in which your fathers dwelt, that I gave to My servant Jacob, and they shall dwell there, they and their children and their children's children, forever; and My Servant David shall be their Prince forever.