1 Samuel 20:8-13 New King James Version (NKJV)

⁸ Therefore you shall deal kindly with your servant, for you have brought your servant into a covenant of the Lord with you. Nevertheless, if there is iniquity in me, kill me yourself, for why should you bring me to your father?”

⁹ But Jonathan said, “Far be it from you! For if I knew certainly that evil was determined by my father to come upon you, then would I not tell you?”

¹⁰ Then David said to Jonathan, “Who will tell me, or what if your father answers you roughly?”

¹¹ And Jonathan said to David, “Come, let us go out into the field.” So both of them went out into the field. ¹² Then Jonathan said to David: “The Lord God of Israel is witness! When I have ^[a]sounded out my father sometime tomorrow, or the third day, and indeed there is good toward David, and I do not send to you and tell you, ¹³ may the Lord do so and much more to Jonathan. But if it pleases my father to do you evil, then I will report it to you and send you away, that you may go in safety. And the Lord be with you as He has been with my father.