1 Samuel 17:57-18:4

57As soon as David returned from killing the Philistine, Abner took him and brought him before Saul, with David still holding the Philistine’s head. 58“Whose son are you, young man?” Saul asked him. David said, “I am the son of your servant Jesse of Bethlehem.”

Saul’s Growing Fear of David 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 home to his family. 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.