'Seat' in the Bible

So Hannah got up after eating and drinking in Shiloh. Now Eli the priest was sitting on his seat beside the doorpost of the temple (tabernacle) of the Lord.

When he mentioned the ark of God, Eli fell off the seat backwards by the side of the [city] gate. His neck was broken and he died, for he was old and heavy. He had judged Israel for forty years.

Then Jonathan said to David, “Tomorrow is the New Moon [festival], and you will be missed because your seat will be empty.

The king sat on his seat as on previous occasions, on his seat by the wall; then Jonathan stood up, and Abner [his commander] sat down by Saul’s side, but David’s place was empty.