Charles Spurgeon Commentary Hebrews 12:5-7

"and ye have forgotten the exhortation which reasoneth with you as with sons, My son, regard not lightly the chastening of the Lord, Nor faint when thou art reproved of him; For whom the Lord loveth he chasteneth, And scourgeth every son whom he receiveth. It is for chastening that ye endure; God dealeth with you as with sons; for what son is there whom [his] father chasteneth not?" — Hebrews 12:5-7 (ASV)

And ye have forgotten the exhortation which speaketh unto you as unto children, My son, despise not thou the chastening of the Lord, nor faint when thou art rebuked of him: 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 12:5–7)

The apostle's intention is to strengthen us for any suffering that may come to us in this mortal life. He does so first by showing us that we are like wrestlers and racers, and that we must expect to endure much hardship if we are to win the crown. We are to endure hardness. The crown cannot be won without it. You know what people will do to win an earthly crown; but the heavenly crown is an immortal, unfading one; so how much more may be expected of you in the way of patient endurance in your heart to win it.

Then Paul changes the figure, and says, "You are the sons of God, and that is the reason why you are admitted to the arena where these sacred strugglings take place, and as you are the sons of God, you must endure the chastening rod." Dear brothers and sisters in Christ, will not each one of you thankfully accept it, and say, "As this is one of the evidences of my sonship, I will thank God for every cut of the rod, and bless his holy name for every twig of it."