Discovery Box1 Corinthians 5:1 
Context5:1 It is actually reported that sexual immorality exists among you, the kind of immorality that is not permitted even among the Gentiles, so that someone is cohabiting with 1 his father’s wife.
1 Corinthians 5:11
Context5:11 But now I am writing to you not to associate with anyone who calls himself a Christian 2 who is sexually immoral, or greedy, or an idolater, or verbally abusive, 3 or a drunkard, or a swindler. Do not even eat with such a person.
1 Corinthians 5:13
Context5:13 But God will judge those outside. Remove the evil person from among you. 4
1 tn Or “someone has married”; Grk “someone has,” but the verb ἔχω (ecw) is routinely used of marital relationships (cf. BDAG 420 s.v. 2.a), including sexual relationships. The exact nature of the relationship is uncertain in this case; it is not clear, for example, whether the man had actually married the woman or was merely cohabiting with her.
2 tn Grk “a brother,” but the Greek word “brother” may be used for “brother or sister,” “fellow Christian,” or “fellow member of the church.” Here the term “brother” broadly connotes familial relationships within the family of God (cf. BDAG 18 s.v. ἀδελφός 2.a).
3 tn Or “a reviler”; BDAG 602 s.v. λοίδορος defines the term as “reviler, abusive person.”
4 sn An allusion to Deut 17:7; 19:19; 22:21, 24; 24:7; cf. 1 Cor 5:2.
