1 Samuel 20:30-33

30And Saul's anger was kindled against Jonathan, and he said to him, Son of the perverse rebellious woman, do not I know that thou hast chosen the son of Jesse to thine own shame and to the shame of thy mother's nakedness?

31For as long as the son of Jesse lives upon earth, thou shalt not be established, nor thy kingdom. And now send and fetch him to me, for he must die.

32And Jonathan answered Saul his father, and said to him, Why should he be put to death? what has he done?

33Then Saul cast the spear at him to smite him; and Jonathan knew that it was determined by his father to put David to death.