Proverbs 15:25 - Ellicott's Commentary On The Whole Bible

The proud — who trust in their own strength; while He will “establish the border,” or landmark, of the helpless widow, who has none to cry to but Him. The frequently threatened punishment against one who removes his neighbour’s landmark, shews the offence to have been a common form of oppression. (Comp. Deuteronomy 19:14; Deuteronomy 27:17; Proverbs 22:28; Job 24:2; Hosea 5:10.)