All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be competent, equipped for every good work.
2 Timothy 3:16-17
Do we believe this as inspired by God? Do we teach based on it? Do we reproof/rebuke all things that go against it? Do we correct others that are misusing it? Do we live rightly by it? Do we truly know it?
Only when we can answer yes, can we do any good.