1 Samuel 19:4-6

Darby Translation

⁴ And Jonathan spoke good of David to Saul his father, and said to him, Let not the king sin against his servant, against David, because he has not sinned against thee; for also what he did was very advantageous to thee;

⁵ for he put his life in hand, and smote the Philistine, and Jehovah wrought a great salvation for all Israel: thou didst see [it], and didst rejoice; why then wilt thou sin against innocent blood, in slaying David without cause?

⁶ And Saul hearkened to the voice of Jonathan, and Saul swore, [As] Jehovah liveth, he shall not be put to death!