2 Corinthians 6:17-18 Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you, 18 And will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty.
The doctrine of separation from the “unclean thing” is lost or ignored by most Christians today. There are few churches that teach or practice Biblical separation. In a technological world and work place, it is not easy to always discern our separation. In the context of the text Paul is warning about being unequally yoked together with unbelievers and urges us to cleanse ourselves from all filthiness of the flesh and spirit perfecting holiness in the fear of God (2 Cor 6:14; 7:1).
The Bible speaks of “unclean things” in various verses and referring to different matters. Although often times they refer to literal unclean things – things that are dirty, contaminating or actual garbage or waste – they are representative of spiritual uncleanness.
Passages dealing with uncleanness: Leviticus 5:1-2 “ . . . if a soul sin, and hear the voice of swearing, and is