2 Timothy 3:14-17

But continue thou in the things which thou hast learned and hast been assured of, knowing of whom thou hast learned them;

15And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus.

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

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

2 Timothy 4:1-4

I charge thee therefore before God, and the Lord Jesus Christ, who shall judge the quick and the dead at his appearing and his kingdom;

2Preach the word; be instant in season, out of season; reprove, rebuke, exhort with all longsuffering and doctrine.

3For the time will come when they will not endure sound doctrine; but after their own lusts shall they heap to themselves teachers, having itching ears;

4And they shall turn away their ears from the truth, and shall be turned unto fables.