כִּ֤י אֶ֥ת אֲשֶׁ֣ר יֶאֱהַ֣ב יְהוָ֣ה יוֹכִ֑יחַ וּ֝כְאָ֗ב אֶת־בֵּ֥ן יִרְצֶֽה׃
For whom the LORD loveth He correcteth, Even as a father the son in whom he delighteth.
Read Jewish philosophical commentary on Proverbs 3:12: and classical philosophical sources.