1 Peter 1:7
that is only to prove your faith is sterling (far more precious than gold which is perishable and yet is tested by fire), and it redounds to your praise and glory and honour at the revelation of Jesus Christ.
Hebrews 12:10-11
For while their discipline was only for a time, and inflicted at their pleasure, he disciplines us for our good, that we may share in his own holiness.
1 Peter 4:12
Beloved, do not be surprised at the ordeal that has come to test you, as though some foreign experience befell you.
Revelation 3:19
I reprove and discipline those whom I love; so be in warm earnest and repent.