After David had finished talking with Saul, Jonathan1 became one in spirit with David, and he loved2 him as himself.3
References for 1 Samuel 18:1
From that day Saul kept David with him and did not let him return to his father's house.
And Jonathan made a covenant4 with David because he loved him as himself.
References for 1 Samuel 18:3
Jonathan took off the robe5 he was wearing and gave it to David, along with his tunic, and even his sword, his bow and his belt.6
References for 1 Samuel 18:4
Whatever Saul sent him to do, David did it so successfully7 that Saul gave him a high rank in the army.8 This pleased all the people, and Saul's officers as well.
References for 1 Samuel 18:5
When the men were returning home after David had killed the Philistine, the women came out from all the towns of Israel to meet King Saul with singing and dancing,9 with joyful songs and with tambourines10 and lutes.
References for 1 Samuel 18:6
As they danced, they sang:11 "Saul has slain his thousands, and David his tens12 of thousands."
References for 1 Samuel 18:7