John Gill Commentary Amos 3:11

"Therefore thus saith the Lord Jehovah: An adversary [there shall be], even round about the land; and he shall bring down thy strength from thee, and thy palaces shall be plundered." — Amos 3:11 (ASV)

Therefore thus says the Lord God

Because of these tumults and riots, oppression and injustice, violence and robbery: an adversary there [shall be] even round about the land : not Tyre, as Theodoret renders the word; but the king of Assyria, who invaded the land of Israel in the days of Hoshea, took Samaria, and carried Israel captive, and placed them in foreign countries, (2 Kings 17:6).

and he shall bring down your strength from you ; take away their riches, demolish their fortresses, and strip them of everything in which they put their confidence:

and your palaces shall be spoiled ; plundered of the treasures laid up in them, and pulled down to the ground; and a just retaliation this for their being the repositories of ill gotten substance and wealth.