Hebrews 12:10-12
They disciplined us for a little while as they thought best; but God disciplines us for our good, in order that we may share in his holiness. No discipline seems pleasant at the time, but painful. Later on, however, it produces a harvest of righteousness and peace for those who have been trained by it. Therefore, strengthen your feeble arms and weak knees.
Hebrews 12:10-12