1 Samuel 18:3
Then Jonathan and David made an agreement together, because of Jonathan's love for David.
1 Samuel 20:8-17
So, then, be kind to your servant; for you have been united with your servant in an agreement made before the Lord: but if there is any wrongdoing in me, put me to death yourself; why take me to your father?
1 Samuel 20:42
And Jonathan said to David, Go in peace, for we two have taken an oath, in the name of the Lord, saying, The Lord will be between me and you, and between my seed and your seed for ever. Then David went away, and Jonathan went into the town.
1 Samuel 23:18
And the two of them made an agreement before the Lord: and David went on living in Horesh, and Jonathan went back to his house.
2 Samuel 9:1-3
And David said, Is there still anyone of Saul's family living, so that I may be a friend to him, because of Jonathan?
2 Samuel 21:7
But the king did not give up Mephibosheth, the son of Saul's son Jonathan, because of the Lord's oath made between David and Jonathan, the son of Saul.