2 Timothy 3:16 NASB95
All Scripture is inspired by God and profitable for teaching, for reproof, for correction, for training in righteousness;

2 Peter 3:15-16 NASB
and regard the patience of our Lord as salvation; just as also our beloved brother Paul, according to the wisdom given him, wrote to you, as also in all his letters, speaking in them of these things, in which are some things hard to understand, which the untaught and unstable distort, as they do also the rest of the Scriptures, to their own destruction.