'Empty' in the Bible

And they said, If ye send away the ark of the God of Israel, send it not empty; but by all means return him a trespass-offering: then ye shall be healed, and it shall be known to you why his hand is not removed from you.

Then Jonathan said unto him, To-morrow is the new moon: and thou wilt be missed, because thy seat will be empty.

And the king sat upon his seat, as at other times, even upon the seat by the wall; and Jonathan stood up, and Abner sat by Saul's side: but David's place was empty.

And it came to pass on the morrow after the new moon, which was the second day , that David's place was empty: and Saul said unto Jonathan his son, Wherefore cometh not the son of Jesse to meat, neither yesterday, nor to-day?