Leviticus 18.5
Septuagint

kai fulaxesqe panta ta prostagmata mou, kai panta ta krimata mou, kai poihsete auta: 
a poihsaV auta anqrwpoV zhsetai en autoiV
 

New Testament - Romans 10.5

MwushV gar grafei thn dikaiosunh thn ek tou nomou oti 
o poihsaV auta anqrwpoV zhsetai en autoiV

Galatians 3.12

o de nomoV ouk estin ek pistewV, all 
o poihsaV auta zhsetai en autoiV

Septuagint

So shall ye keep all my ordinances, and all my judgements, and do them; which if a man do, he shall live in them
 

New Testament

Romans 10.5:  For Moses writeth that the man that doeth the righteousness which is of the law shall live thereby

Galatians 3.12:  and the law is not of faith; but, He that doeth them shall live in them

Masoretic Text

Ye shall therefore keep my statutes, and mine ordinances; which if a man do, he shall live in them

Comments:  The NT, the LXX and the MT agree.