1 Samuel 19:4-6

21st Century King James Version

⁴ And Jonathan spoke well of David unto Saul his father, and said unto him, “Let not the king sin against his servant, against David, because he hath not sinned against thee and because his works have been toward thee very good.

⁵ For he put his life in his hands and slew the Philistine, and the Lord wrought a great salvation for all Israel. Thou sawest it and didst rejoice. Why then wilt thou sin against innocent blood, to slay David without a cause?”

⁶ And Saul hearkened unto the voice of Jonathan; and Saul swore, “As the Lord liveth, he shall not be slain.”