Hebrews 12:11
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.
The Message Translation says,
Hebrews 12:11 MSG
At the time, discipline isn’t much fun. It always feels like it’s going against the grain. Later, of course, it pays off big-time, for it’s the well-trained who find themselves mature in their relationship with God.