Jonathan and David's covenant is the sworn friendship covenant between Saul's son Jonathan and the rising David. Jonathan, heir to a throne he would never inherit, covenanted with David, gave him his royal robe and weapons (1 Sam 18:4), warned him repeatedly of his father's plots, and renewed the covenant at Horesh: thou shalt be king over Israel, and I shall be next unto thee (1 Sam 23:17). The covenant outlasted Jonathan's death; David honored it in Mephibosheth.
(Composite.) The sworn friendship covenant between Jonathan and David, fulfilled across decades.
Three covenant ratifications: 1 Sam 18:3 (initial), 1 Sam 20:16-17 (renewed before Jonathan's mediation), 1 Sam 23:18 (renewed at Horesh).
Posthumous fulfillment: David sought out Jonathan's lame son Mephibosheth and gave him a permanent place at the king's table (2 Sam 9), for Jonathan thy father's sake.
1 Samuel 18:3 — "Then Jonathan and David made a covenant, because he loved him as his own soul."
1 Samuel 18:4 — "And Jonathan stripped himself of the robe that was upon him, and gave it to David, and his garments, even to his sword, and to his bow, and to his girdle."
1 Samuel 23:17 — "Fear not: for the hand of Saul my father shall not find thee; and thou shalt be king over Israel, and I shall be next unto thee."
2 Samuel 9:7 — "Fear not: for I will surely shew thee kindness for Jonathan thy father's sake."
Modern friendship vocabulary is shallow; the Jonathan-David covenant models a depth Western Christianity often does not know how to name.
Jonathan's covenant cost him a throne. He recognized that the LORD's anointing rested on David, accepted the implications, and sealed himself to the man who would inherit what should have been his. The cost was not theoretical.
David's covenant outlasted Jonathan's death. Mephibosheth, Jonathan's lame son, ate at David's table for life. The covenant stretched a generation. Modern friendship rarely thinks generationally; this one did.
Hebrew karat berit with aheb (love); the covenant of love.
Hebrew aheb — love; he loved him as his own soul.
Note: Jonathan and David's covenant is one of the great biblical pictures of chesed between two men, paralleled with Ruth-Naomi between two women.
"Jonathan's covenant cost him a throne."
"He shall be king over Israel, and I shall be next unto thee — sworn at the cost of inheritance."
"The covenant stretched a generation; Mephibosheth ate at David's table."