In what instances or for what sins should [church discipline] be exercised? 1. Unrepentant moral evil (1 Cor. 5). 2. Divisiveness and serious doctrinal error (Rom. 16:17-18; Titus 3:9-10). 3. General offenses (such that are not included under the above two categories; see Gal. 6:1; 2 Thess. 3:6-15).