Isaiah 52.11
Septuagint

aposthte, aposthte,exelqate ekeiqen,
kai akaqartou mh ayhsqe, 
exelqete ek mesou authV, 
aforisqhte oi feronteV ta skeuh kuriou

New Testament - 2 Corinthians 6.17

exelqate ek mesou autw
kai aforisqhte, legei kurioV, 
kai akaqartou mh aptesqe: 
kagw eisdexomai umaV

Septuagint

Depart ye, depart ye, go out from thence, and touch not the unclean thing; go ye out from the midst of her; separate yourselves, ye that bear the vessels of the Lord

New Testament

Come ye out from among them, and be ye separate, saith the Lord, And touch no unclean thing; And I will receive you

Masoretic Text

Depart ye, depart ye, go ye out from thence, touch no unclean thing; go ye out of the midst of her; cleanse yourselves, ye that bear the vessels of Jehovah 

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