Chaste Chastening

For whom the Lord loveth he chasteneth, and scourgeth every son whom he receiveth. If ye endure chastening, God dealeth with you as with sons; for what son is he whom the father chasteneth not?
— Hebrews 12:6–7

Chastening is grievous. If we knew it came from the father, it would seem less grievous. Is Jesus God, or was he just a carpenter with brothers and sisters?