2 Timothy 3:16-17; 2 Timothy 2:15-17

16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:

17 That the man of God may be perfect, throughly furnished unto all good works.

15 Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth.

16 But shun profane and vain babblings: for they will increase unto more ungodliness.

17 And their word will eat as doth a canker: of whom is Hymenaeus and Philetus;