2 Timothy 3:14-17

But you need to keep doing the things that you learned -- the things which were imprinted onto the core of your being as you were taught by some very solid teachers. 15 Since early childhood your life has been steeped in the holy writings that have shaped you into a wise person and led you to trust Christ Jesus for your salvation. 16 All parts of scripture are God-breathed and are useful for teaching truth, for revealing our mistakes, for correcting those mistakes, and for our character development. 17 Through scripture those who belong to God are fully equipped to do good.