3. The unequally yoked brother—The doctrinal, or theological, error of idolatry, or being unequally yoked with unbelievers (1 Cor. 5:11; 2 Cor. 6:14). 4. The lazy brother—The sin of laziness in which the brother will not work for a living (2 Thess. 3:6–15). 5. The disobedient brother—Open disobedience to Scripture (2 Thess. 2:15; 3:6–14). 6. The heretical brother—Heresy, or deviant doctrine, that is promoted out of self-willed divisiveness (Titus 3:10). The third conclusion is an observation. Like