Hebrews 12:10-12

King James Version

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;