What does Titus 2:15 mean?
The final verse of chapter 2 begins with a general command to "declare," or "teach," certain things. The ideas Paul has in mind are the ones he has given about various groups within the church (Titus 2:1–10), as well as his teachings on salvation and Christian living (Titus 2:11–14).Titus was to "exhort," or "encourage." To exhort is to teach or urge, focusing on the positive aspects of teaching Christian truth. Exhortation was often used as another word for preaching. John the Baptist exhorted people when he preached the good news (Luke 3:18). Peter exhorted people when he preached at Pentecost (Acts 2:40). Exhortation is even called a spiritual gift in Romans 12:8.
To "rebuke," or "correct," focuses on the negative aspect of defending truth against false teachers, and speaking against sin. Titus had been commissioned by Paul for his leadership position, and was to follow Paul's commands "with all authority." Titus had been commanded by an apostle and was not to let false teachers—or his own insecurities—keep him from fulfilling his important calling to the people of Crete.