Adam Clarke on Matthew 5:40

And if any man will sue thee at the law - Every where our blessed Lord shows the utmost disapprobation of such litigations as tended to destroy brotherly kindness and charity. It is evident he would have his followers to suffer rather the loss of all their property than to have recourse to such modes of redress, at so great a risk. Having the mind averse from contentions, and preferring peace and concord to temporal advantages, is most solemnly recommended to all Christians. We are great gainers when we lose only our money, or other property, and risk not the loss of our souls, by losing the love of God and man.

Coat - Χιτωνα, upper garment. - Cloke, ἱματιον, under garment. What we call strait coat, and great coat. - See on Luk 6:29 (note).