What does Proverbs 3:12 mean?

This verse points out that discipline is an evidence of the Lord's love. If He did not love us, He would not discipline us. An uncaring God would let us follow our sinful inclinations consequence-free, going headlong into sin and meeting its destructive end. We see the same pattern echoed in earthly fathers. A father who does not discipline his son does not demonstrate love, he exhibits selfishness and shame. In short, a father who never disciplines his children is derelict. He fails to guide his son away from destructive sinning and lets him go his own headstrong way, much to the harm of society.

On the other hand, a father who loves his son will point out wrongdoing and its destructive consequences. His discipline will guide his son in the paths of righteousness so he will become a man of character who honors the Lord.

Hebrews 12:6 cites these very words: "For the Lord disciplines the one he loves, and chastises every son whom he receives." When the Lord disciplines us, it is time to examine our lives and confess every known sin (1 John 1:9).