|Int. Standard Bible Encyclopedia|
(beth ha-qayits): Amos 3:15 notes it as part of the judgment on Israel that Yahweh would smite "the winter-house with the summer-house." It belonged to the luxury of the period that kings and wealthy persons had separate residences for the cold and hot seasons. This is the only mention of "the summer-house," but Eglon's "cool upper room" (Judges 3:20, the King James Version and the English Revised Version "summer parlour," not in this case a separate building) may be compared.
Summer-house (4 Occurrences)
Judges 3:20 Then Ehud came in to him while he was seated by himself in his summer-house. And Ehud said, I have a word from God for you. And he got up from his seat. (BBE)
Judges 3:23 Then Ehud went out into the covered way, shutting the doors of the summer-house on him and locking them. (BBE)
Judges 3:24 Now when he had gone, the king's servants came, and saw that the doors of the summer-house were locked; and they said, It may be that he is in his summer-house for a private purpose. (BBE)
Amos 3:15 And I will smite the winter-house with the summer-house; and the houses of ivory shall perish, and the great houses shall have an end, saith Jehovah. (See JPS ASV DBY WBS YLT)