Discipline can be painful for anyone especially from a church they love. All discipline serves a purpose especially for a Christian who has committed a sin.
A young child accidentally took sleeping pills from the medicine cabinet. The Dr. told the family to keep the child awake for the next 8 hours even if with the pain of a slap if need be. The pain was necessary for the child’s survival. So too in the Christians journey.
11 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.