Hebrews 12:9

6 For whom the Lord loveth he chasteneth, and scourgeth every son whom he receiveth.

7 If ye endure chastening, God dealeth with you as with sons; for what son is he whom the father chasteneth not?

8 But if ye be without chastisement, whereof all are partakers, then are ye bastards, and not sons.

9 Furthermore we have had fathers of our flesh which corrected us, and we gave them reverence: shall we not much rather be in subjection unto the Father of spirits, and live?

10 For they verily for a few days chastened us after their own pleasure; but he for our profit, that we might be partakers of his holiness.

11 Now no chastening for the present seemeth to be joyous, but grievous: nevertheless afterward it yieldeth the peaceable fruit of righteousness unto them which are exercised thereby.

12 Wherefore lift up the hands which hang down, and the feeble knees;