Adam Clarke on Micah 3:10

They build up Zion with blood - They might cry out loudly against that butchery practiced by Pekah, king of Israel, and Pul coadjutor of Rezie, against the Jews. See on Mic 2:9 (note). But these were by no means clear themselves; for if they strengthened the city, or decorated the temple, it was by the produce of their exactions and oppressions of the people.

I do not know a text more applicable than this to slave-dealers; or to any who have made their fortunes by such wrongs as affect the life of man; especially the former, who by the gains of this diabolic traffic have built houses etc.; for, following up the prophet's metaphor, the timbers, etc., are the bones of the hapless Africans; and the mortar, the blood of the defenceless progeny of Ham. What an account must all those who have any hand in or profit from this detestable, degrading, and inhuman traffic, give to Him who will shortly judge the quick and dead!