Because he hath oppressed - Margin, “crushed.” Such is the Hebrew.
And forsaken the poor - He has plundered them, and then forsaken them - as robbers do. The meaning is, that he had done this by his oppressive manner of dealing, and then left them to suffer and pine in want.
He hath violently taken away an house which he builded not - That is, by overreaching and harsh dealings he has come in possession of dwellings which he did not build, or purchase in any proper manner. It does not mean that he had done this by violence - for Zophar is not describing a robber, but he means that he took advantage of the needs of the poor and obtained their property. This is often done still. A rich man takes advantage of the needs of the poor, and obtains their little farm or house for much less than it is worth. He takes a mortgage, and then forecloses it, and buys the property himself for much less than its real value, and thus practices a species of the worst kind of robbery. Such a man, Zophar says, must expect punishment - and if there is any man who has occasion to dread the wrath of heaven it is he.