1 Kings 1:1-4

King David had grown old and couldn't keep warm in bed however many blankets they used to cover him.

So his officials suggested, “Let a search be made on behalf of Your Majesty for a young virgin to serve you and look after you. She can lie next to you and keep you warm.”

So they searched the whole country of Israel for a beautiful young woman and found Abishag from the town of Shunem and took her to the king.

She was very beautiful, and she looked after the king, attending to his needs, but he did not have sex with her.