Amos 7:7-9

Verse 7

With a plumbline in his hand - This appears to be intended as an emblem of strict justice, and intimated that God would now visit them according to their iniquities.
Verse 8

I will set a plumbline - I will visit them by justice without any mixture of mercy.
Verse 9

And the high places of Isaac shall be desolate - Their total destruction is at hand. The high place of Isaac was Beer-sheba, where Isaac had built an altar to the Lord, Gen 26:25. This high place, which had been abused to idolatrous uses, was demolished by Josiah, king of Judah, as we read in 2Kgs 23:8, for he defiled all the high places from Geba to Beersheba.

I will rise against the house of Jeroboam - The Lord had promised to Jehu, the ancestor of Jeroboam, that his family should sit on the throne of Israel to the fourth generation. Zechariah, the son of Jeroboam, was the fourth in order after Jehu; and on him the threatening in this verse fell; for he was murdered by Shallum after he had reigned six months, and in him the family became extinct. See 2Kgs 10:30; 2Kgs 15:8-10.
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