Matthew 4:4 (NKJV) But He answered and said, "It is written, 'Man shall not live by bread alone, but by every word that proceeds from the mouth of God;' "

 2 Timothy 3:14-17 (NKJV) “But you must continue in the things which you have learned and been assured of, knowing from whom you have learned them, 15and that from childhood you have known the Holy Scriptures, which are able to make you wise for 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 complete, thoroughly equipped for every good work."