And ye are puffed up, and have not rather mourned, that he that hath done this deed might be taken away from among you.
Puffed up - with your own wisdom and the eloquence of your favourite teachers, when ye ought to be 'mourning' at the scandal to religion by the incest. Paul mourned because they did not mourn and repent, but were "puffed up" (1 Corinthians 4:19; Jeremiah 13:17; 2 Corinthians 2:4; 2 Corinthians 12:21).
That - ye have not so mourned as to lead to the result that, etc.
Taken away from among you - by excommunication. The incestuous person was brought to repentance, in the interval between the first and second letters (2 Corinthians 2:5-10). Excommunication in the Church corresponded to that in the Synagogue, there being a lighter and heavier form-the latter an utter separation from church-fellowship, the former exclusion from the Lord's supper only, but not from church.