1 Samuel 20:7-9

King James Version

⁷ If he say thus, It is well; thy servant shall have peace: but if he be very wroth, then be sure that evil is determined by him.

⁸ Therefore thou shalt deal kindly with thy servant; for thou hast brought thy servant into a covenant of the Lord with thee: notwithstanding, if there be in me iniquity, slay me thyself; for why shouldest thou bring me to thy father?

⁹ And Jonathan said, Far be it from thee: for if I knew certainly that evil were determined by my father to come upon thee, then would not I tell it thee?