Deuteronômio 8

Deuteronômio 8:3

"Man shall not live by bread alone, but by every word which goeth forth from the mouth of God." Now He said "shall live," and not, "shall be sound," nor, "shall be strong," nor, "shall be filled its lust's need;" and although this word is of little importance in its utterance, yet a great distinction is apparent therein. For He taught us clearly by that word that not by bread alone should man live, but that he should eat only to live, and not for the sake of lust, or strength, or healthy condition; for according to these things is life stablished also in sickness, and in weakness a man liveth unto them in the world. — 13 Ascetic Discourses, Discourse 11 -- On Abstinence