'Serve' in the Bible

And all the kings -- servants of Hadadezer -- see that they have been smitten before Israel, and make peace with Israel, and serve them; and Aram is afraid to help any more the Bene-Ammon.

And -- Thou dost deliver me From the strivings of my people, Thou placest me for a head of nations; A people I have not known do serve me.