1834 · Albert Barnes, Notes on the Bible: Hebrews 12.5
The word rendered here "chastening" - παιδεία paideia - and also in Heb 12:6-8, and in Heb 12:9, "corrected" - παιδευτὰς paideutas - does not refer to affliction in general, but that kind of affliction which is designed to correct us for our faults, or which is of the nature of discipline. The verb properly relates to the training up of a child - including instruction, counsel, discipline, and correction (see this use of the verb in Act 7:22; 2Ti 2:25; Tit 2:12), and then especially discipline or correction for faults - to "correct, chastise, chasten;" 1Co 11:32; 2Co 6:9; Rev 3:19. This is the meaning here; and the idea is, not that God will afflict his people in general, but that if they wander away he will correct them for their faults. He will bring calamity upon them as a punishment for their offences, and in order to bring them back to himself. He will not suffer them to wander away unrebuked and unchecked, but will mercifully reclaim them though by great sufferings. Afflictions have many objects, or produce many happy effects. That referred to here is, that they are means of reclaiming the wandering and erring children of God, and are proofs of his paternal care and love; compare 2Sa 7:14; 2Sa 12:13-14; Psa 89:31-34; Pro 3:11-12.