Ambrose of Milan, on Prov 13:24

“He that spareth the rod hateth his son: but he that loveth him correcteth him betimes.”

“Then the provident guide of the soul has regard to this, that he may circumscribe her pleasures and cut off her desires, that she may not delight herself in them. That father's corrections are profitable, who spares not the rod, that he may render his son's soul obedient to salutary precepts. For he visits with a rod, as we read, I will visit their offences with the rod. And so he who smites the soul of the Israelites with a rod on the cheek, by this Divine punishment instructs her in the discipline of patience. But no man need despair who is chastised and corrected, for he who loveth his son chastiseth him. Let no man therefore despair of a remedy.”

Imported from an open dataset — not yet checked against the printed edition.