Matthew Poole and continuators on 1 Corinthians 6:8

8 Nay, you do wrong and defraud, and that your brethren .

The Apostle riseth higher in his charge against them, he had before only charged them for want of self-denial, that they could not bear or suffer wrong; he now chargeth them for doing wrong and defrauding, and that not Heathens (which yet had been bad enough) but Christians that were their brethren, whom they had the highest obligations upon them imaginable to love, and to do good to. And indeed this charge followeth directly upon the other: For as in War, one Army always are murderers, or guilty of the blood which they spill; so in suing at Law (which is a Civil War betwixt the two Parties) either the one or the other Party suing must do wrong, either putting his brother to trouble and expence, to recover of him what is not his right, or that he might withhold from him what is truly and indeed his right, either of which is indeed a doing of wrong or defrauding.