The writer wants his readers to see hardship as a mark of belonging, not rejection. He first says, "If ye endure chastening, God dealeth with you as with sons." Barnes says this is not about how patiently they bear it: "The affirmation does not relate to the manner of bearing it, but to the fact that we are disciplined." Gill reads it the other way, as enduring it "In faith, with patience, with courage and constancy." Then he asks a question everyone could answer from ordinary life. A father who cares about his son corrects him. Barnes says such a father shows by it that he truly stands in the place of a father. Gill adds that no son can be named whom the Father has not chastened, not even eminent saints such as Abraham and David.

The answer is plain: there is no such son. The writer states the reverse in the next line: "But if ye be without chastisement, whereof all are partakers, then are ye bastards, and not sons" (Hebrews 12:8). He goes on to compare earthly fathers with God (Hebrews 12:9-10) and admits that "no chastening for the present seemeth to be joyous, but grievous: nevertheless afterward it yieldeth the peaceable fruit of righteousness" (Hebrews 12:11).

The picture of God as a father who corrects comes from the proverb the writer has just quoted, which ends, "even as a father the son in whom he delighteth" (Proverbs 3:12). The verb "chasteneth" is related to paideia, a word Thayer's lexicon describes as "the whole training and education of children." It is the language of raising a child, not of punishing an enemy. The ESV renders the first half of the verse differently, "It is for discipline that you have to endure," but both translations draw the same point from the question: God is dealing with them as sons.

This question reveals God as a Father who is personally involved in His children's lives. Matthew Henry's Concise Commentary says that in correcting His children, God "acts as becomes a father." Neglect would be the real sign of distance. Correction is a sign of relationship.

The writer also shows where the training leads. Earthly fathers corrected "after their own pleasure," but God does it "for our profit, that we might be partakers of his holiness" (Hebrews 12:10). The goal is not to break His children but to make them like Him.