1 Samuel 18
1After David had finished talking with Saul, Jonathan became one in spirit with David, and he loved him as himself.
2From that day Saul kept David with him and did not let him return to his father’s house.
3And Jonathan made a covenant with David because he loved him as himself.
4Jonathan took off the robe he was wearing and gave it to David, along with his tunic, and even his sword, his bow and his belt.
5Whatever Saul sent him to do, David did it so successfully that Saul gave him a high rank in the army. This pleased all the people, and Saul’s officers as well.
1 Samuel 23
16And Saul’s son Jonathan went to David at Horesh and helped him find strength in God.
17“Don’t be afraid,” he said. “My father Saul will not lay a hand on you. You will be king over Israel, and I will be second to you. Even my father Saul knows this.”
18The two of them made a covenant before the Lord. Then Jonathan went home, but David remained at Horesh.
1 Samuel 18:1-5 & 23:16-18 | NIV 84