Deuteronomy 8.3
Septuagint

ina anaggeilh soi, oti 
ouk ep artw monw zhsetai o anqrwpoV, all epi panti rhmati tw ekporeuomenw 
dia stomatoV qeou zhsetai o anqrwpoV
 

New Testament - Matthew 4.4

o de apokriqeiV eipen:  gegraptai: 
ouk ep artw monw zhsetai o anqrwpoV, all epi panti rhmati ekporeuomenw 
dia stomatoV qeou 

Luke 4.4

kai apekriqh proV auton o IhsouV:  gegraptai oti 
ouk ep artw monw zhsetai o anqrwpoV

Septuagint

that he might teach thee that man shall not live by bread alone, but by every word that proceeds out of the mouth of God shall man live
 

New Testament

Matthew 4.4:  But he answered and said, It is written, Man shall not live by bread alone, but by every word that proceedeth out of the mouth of God

Luke 4.4:  And Jesus answered unto him, It is written, Man shall not live by bread alone

Masoretic Text

that he might make thee know that man doth not live by bread only, but by everything that proceedeth out of the mouth of Jehovah doth man live

Comments:  The NT, LXX and MT agree.  Codex Alexandrinus omits the article tw, making the agreement between the NT and the LXX exact.