Jonathan said to David, Go in peace, because we have sworn both of us in the name of Yahweh, saying, Yahweh shall be between me and you, and between my seed and your seed, forever. He arose and departed: and Jonathan went into the city.
David just said, "Man, I'm living on the border of eternity. There's just a step between me and death. Your dad's after me and he's trying to kill me."