Hebrews 12 8
If you are not disciplined, (which everyone has experienced), then you are illegitimate and not true children.
Compare with other 3 random translations
NAS Hebrews 12:8But if you are without discipline, of which all have become partakers, then you are illegitimate children and not sons.
EAS Hebrews 12:8God teaches all his children not to do wrong things. So if he does not punish you, it shows that you are not really his children. Instead, you are like children who do not really belong to him.
ASV Hebrews 12:8But if ye are without chastening, whereof all have been made partakers, then are ye bastards, and not sons.