Hebrews 12:6

For whom the Lord loveth he chasteneth - This is also a quotation from Proverbs 3. It means that it is a universal rule that God sends trials on those whom he truly loves. It does not, of course, mean that he sends chastisement which is not deserved; or that he sends it “for the mere purpose” of inflicting pain. That cannot be. But it means that by his chastisements he shows that he has a paternal care for us. He does not treat us with neglect and unconcern, as a father often does his illegitimate child. The very fact that he corrects us shows that he has toward us a father’s feelings, and exercises toward us a paternal care. If he did not, he would let us go on without any attention, and leave us to pursue a course of sin that would involve us in ruin. To restrain and govern a child; to correct him when he errs, shows that there is a parental solicitude for him, and that he is not an outcast. And as there is in the life of every child of God something that deserves correction, it happens that it is universally true that “whom the Lord loveth he chasteneth.”

And scourgeth every son whom he receiveth - Whom he receives or acknowledges as his child. This is not quoted literally from the Hebrew, but from the Septuagint. The Hebrew is, “even as a father the son in whom he delighteth.” The general sense of the passage is retained, as is often the case in the quotations from the Old Testament. The meaning is the same as in the former part of the verse, that every one who becomes a child of God is treated by him with that watchful care which shows that he sustains toward him the paternal relation.