Thematic Bible: Why the lord chastens people

If you endure chastening, God deals with you as with sons, for what son is he whom the father does not chasten? But if you are without chastisement, of which all are partakers, then you are bastards and not sons. Furthermore we have had fathers of our flesh who corrected us, and we gave them reverence. Shall we not much rather be in subjection to the Father of spirits and live? read more.
For truly they chastened us for a few days according to their own pleasure, but He for our profit, that we might be partakers of His holiness.

For if we would judge ourselves, we would not be judged. But when we are judged, we are chastened by the Lord, that we should not be condemned with the world.