1 Samuel 23:18
And they made a bond both of them together before the LORD. And David tarried still in the thicket, and Jonathan went to his house.
1 Samuel 18:3
And Jonathan and David bound themselves the one to the other, for Jonathan loved him as his own soul.
1 Samuel 20:42
And Jonathan said unto David, "Go thy way in peace. Whatsoever we both have sworn and spoken together in the name of the LORD, the LORD be witness between me and thee, and between my seed and thine forever." And Jonathan gat him up, and came into the city.
2 Samuel 21:7
But the king had compassion on Mephibosheth, the son of Jonathan, the son of Saul, because of the LORD's oath that was between them: that is to say, between David and Jonathan the son of Saul.
2 Samuel 9:1
Then said David, "Is there yet any man left of the house of Saul, that I may show him mercy for Jonathan's sake?"
1 Samuel 20:12-17
And Jonathan said unto David, "O LORD God of Israel, when I have groped my father's mind, one time or other within this three days, that it stand well with David: and I then send not unto thee and show it thee, the LORD do so and so unto Jonathan.