Hebrews 12:3-8

3For consider him that endured such contradiction of sinners against himself, lest ye be wearied and faint in your minds. 4Ye have not yet resisted unto blood, striving against sin.

5And 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: 6For whom the Lord loveth he chasteneth, and scourgeth every son whom he receiveth. 7If ye endure chastening, God dealeth with you as with sons; for what son is he whom the father chasteneth not? 8But if ye be without chastisement, whereof all are partakers, then are ye bastards, and not sons.