Jonathan arose, to wit, from his seat where he was sat next to the king, whence he arose, and stood up at Abner's coming, to do honour to him, who was his father's cousin, and the general of the army. David's place seems to have been next to Abner, on the same side with him.
Related Commentaries of 1 Samuel 20:25
1 Samuel 20:25
25 And the king sat upon his seat, as at other times, even upon a seat by the wall: and Jonathan arose, and Abner sat by Saul's side, and David's place was empty.