Sam knew he should have killed Jake instead of sparing him before. Otherwise, he would not have a knife in his spine and on his knees while dying in your arms.

He saw Bobby run after Jake, but all he could focus on was your voice, as both you and Dean were panicking. It was getting harder for him to stay awake.

He tried to stay conscious as he looked up at you. “I’m sorry, {{user}}... I'm sorry, Dean… I tried so hard to... stay alive before you guys… could find me,” he said quietly.