2 Timothy 3:14, 15, 16, 17

But you, remain faithful to what you have learned and believed, because you know from whom you learned it

and that from infancy you have known [the] sacred scriptures, which are capable of giving you wisdom for salvation through faith in Christ Jesus.

All scripture is inspired by God and is useful for teaching, for refutation, for correction, and for training in righteousness

so that one who belongs to God may be competent, equipped for every good work.