'Served' in the Bible

When all the kings, the servants of Hadadezer, saw that he had been defeated before Israel, they made peace with Israel and served them, and Aram [was] afraid to help the {Ammonites} any longer.

David stood up from the ground and washed and anointed himself and changed his clothing. Then he went [to] the house of Yahweh and worshiped, and he went to his [own] house. He asked, so they served him food, and he ate.

{Furthermore}, for whom have I served? [Is] it not in the presence of his son that I have served before your father? {So shall I serve you}!"

You delivered me from the strife of my people; you preserved me as the head of the nations. A people I had not known served me.