'Ministered' in the Bible

And the damsel was very fair, and cherished the king, and ministered to him: but the king knew her not.

And Bathsheba went in unto the king into the chamber: and the king was very old; and Abishag the Shunammite ministered unto the king.

And he returned back from him, and took a yoke of oxen, and slew them, and boiled their flesh with the instruments of the oxen, and gave unto the people, and they did eat. Then he arose, and went after Elijah, and ministered unto him.