Hebrews 12
4In your struggle against sin, you have not yet resisted to the point of shedding your blood. 5And you have forgotten that word of encouragement that addresses you as sons:
"My son, do not make light of the Lord's discipline,
and do not lose heart when he rebukes you,
6because the Lord disciplines those he loves,
and he punishes everyone he accepts as a son."
7Endure hardship as discipline; God is treating you as sons. For what son is not disciplined by his father? 8If you are not disciplined (and everyone undergoes discipline), then you are illegitimate children and not true sons.
Hebrews 12
11No 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.
Revelation 3
19Those whom I love I rebuke and discipline. So be earnest, and repent.
Romans 5
3Not only so, but we also rejoice in our sufferings, because we know that suffering produces perseverance; 4perseverance, character; and character, hope.