1 Samuel 20:11-17

“Come on,” Jonathan said. “Let’s go out to the field.” So they went there together. Then Jonathan spoke to David. He said, “I promise you that I’ll find out what my father is planning to do. I’ll find out by this time the day after tomorrow. The LORD, the God of Israel, is my witness. Suppose my father has kind feelings toward you. Then I’ll send you a message and let you know. But suppose he wants to harm you. And I don’t let you know about it. Suppose I don’t help you get away in peace. Then may the LORD punish me greatly. May he be with you, just as he has been with my father. But always be kind to me, just as the LORD is. Be kind to me as long as I live. Then I won’t be killed. And never stop being kind to my family. Don’t stop even when the LORD has cut off every one of your enemies from the face of the earth.” So Jonathan made a covenant of friendship with David and his family. He said, “May the LORD hold David’s enemies responsible for what they’ve done.” Jonathan had David promise his friendship again because he loved him. In fact, Jonathan loved David just as he loved himself.