A.T. Robertson Commentary 2 Corinthians 6:17

"Wherefore Come ye out from among them, and be ye separate, saith the Lord, And touch no unclean thing; And I will receive you," — 2 Corinthians 6:17 (ASV)

Saith the Lord (λεγε Κυριος). Isaiah 52:5; Ezekiel 20:33. Cf. Revelation 18:4.

Unclean thing (ακαθαρτου). Or unclean person. Genitive case is the same for both.