2 Timothy 3:14-17

But continue in the things that you have learned and have been assured of, knowing those from whom you have learned them, and that since childhood you have known the Holy Scriptures, which are able to make you wise unto salvation through the faith that is in Christ Jesus. All Scripture is inspired by God and is profitable for teaching, for reproof, for correction, and for instruction in righteousness, that the man of God may be complete, thoroughly equipped for every good work.