God judges those outside. “Purge the evil person from among you.”
13. Put away that wicked person. This is commonly explained as referring to the person who was guilty of an illicit connection with his mother-in-law. For as to those who understand the expression to mean — “Put away evil or wickedness,” they are refuted by the Greek words made use of by Paul, the article (τὸν) being in the masculine gender, But what if you...
Here the apostle advises them to shun the company and converse of scandalous professors. Consider, I. The advice itself: I wrote to you in a letter not to company with fornicators, Co1 5:9. Some think this was an epistle written to them before, which is lost.
Commenting on 1 Corinthians 5:9-13
But them that are without God judgeth,.... Or "will judge", in the great day of judgment; wherefore though such persons did not fall under the censures and punishment of the apostle, nor of a church of Christ, yet they shall not go unpunished; God will call them to an account for their fornication, covetousness, idolatry, extortion, &c.