All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness. (2Timothy 3:16 ESV).
Apostle Paul stresses the authority of all Scripture.
The divine origin of Scripture is the reason for its power to convert and its usefulness in training.
What do we mean training in righteousness?
• Learning to live in conformity to God’s will, both publicly and privately.
• Behaving honorably with personal integrity and moral courage.