John Calvin on Amos 1:5

He then adds, I will break in pieces the bar of Damascus The Prophet confirms what he had already said; for Damascus, being strongly fortified, might have seemed unassailable. By bar, the Prophet, mentioning a part for the whole, meant strongholds and everything which could keep out enemies. Nothing, then, shall prevent enemies from taking possession of the city of Damascus. How so? Because the Lord will break in pieces its bars.

It is then added, I will cut off, or destroy, the inhabitant from Bikoth Aven, or from the plain of Aven. It is uncertain whether this was the proper name of a place or not, though this is probable; and yet it means a plain, derived from a verb, which signifies to cut into two, or divide, because a plain or a valley divides or separates mountains; hence a valley or plain is called in Hebrew a division. Now, we know that there were most delightful plains in the kingdom of Syria, and even near Damascus. Aven also may have been the name of a place, though it means in Hebrew trouble or laborer. But whatever it may have been, the Prophet no doubt declares here, that all the plains nigh Damascus, and in the kingdom of Syria, would be deprived of their inhabitants. I will then destroy the inhabitant from the plain of Aven, and the holder of the scepter from the house of Eden, or from the house of pleasure. This also may have been the name of a place, and from its situation a region, which, by its pleasantness greatly delighted its inhabitants. But the Prophet, I have no doubt, alludes, in these two words, to trouble and pleasure Removed, he says, shall be the people of Syria into Kir. The purport of this is, that the kingdom of Syria would be wasted, so that the people would be taken into Assyria; for the Prophet declares that the Assyrians would be the conquerors, and remove the spoils into their own kingdom, and lead away the people as captives; for the word city, as a part for the whole, is put here for the whole land. It now follows —

Amos 1:6-8

6. Thus saith the Lord; For three transgressions of Gaza, and for four, I will not turn away the punishment thereof; because they carried away captive the whole captivity, to deliver them up to Edom:

6. Sic dicit Jehova, Super tribus sceleribus Gazae et super quatuor, non ero propitius ei, quia transtulerunt captivitatem perfectam, ut concluderent in Edom:

7. But I will send a fire on the wall of Gaza, which shall devour the palaces thereof:

7. Et mittam ignem in murum Gazae, qui devorabit palatia ejus:

8. And I will cut off the inhabitant from Ashdod, and him that holdeth the sceptre from Ashkelon, and I will turn mine hand against Ekron: and the remnant of the Philistines shall perish, saith the Lord God.

8. Et excidam habitatorem de Azoto et tenentem sceptrum de Ascalon; et convertam (vel, reducam) manum meam super Ekron, et peribunt reliquiae Philistinorum, dicit Dominus Jehova.