C. F. Keil and Franz Delitzsch on Proverbs 16:7

Pro 16:7 7 If Jahve has pleasure in the ways of a man,    He reconciles even his enemies to him - properly (for השׁלים is here the causative of the transitive, Jos 10:1): He brings it about that they conclude peace with him. If God has pleasure in the ways of a man, i.e., in the designs which he prosecutes, and in the means which he employs, he shows, by the great consequences which flow from his endeavours, that, even as his enemies also acknowledge, God is with him (e.g., Gen 26:27.), so that they, vanquished in heart (e.g., 2Sa 19:9.), abandon their hostile position, and become his friends. For if it is manifest that God makes Himself known, bestowing blessings on a man, there lies in this a power of conviction which disarms his most bitter opponents, excepting only those who have in selfishness hardened themselves.