Hebrews 12:7-11

It is for discipline that you endure; God is dealing with you as his own children. For what child is not disciplined by his father? If you have not been disciplined, as he disciplines all his children, then you are illegitimate and not his. Furthermore, since we respected our earthly fathers when they disciplined us, shouldn't we even more submit to the Father of our spirits and live? Our earthly fathers disciplined us for a few years as they saw best, but God's discipline is good for us so we can partake in his holiness. All discipline seems unpleasant at the time and there's no joy in it. But afterwards there is a peaceful harvest of righteousness for those being trained.