1 Timothy 6:2
Those who have believing masters should not show disrespect because they are brothers, but should serve them all the more, since those receiving their good service are beloved believers. Teach and encourage these principles.

2 Timothy 4:2
Preach the word; be prepared in season and out of season; reprove, rebuke, and encourage with every form of patient instruction.

Titus 2:15
Speak these things as you encourage and rebuke with all authority. Let no one despise you.

Titus 3:8
This saying is trustworthy. And I want you to emphasize these things, so that those who have believed God will take care to devote themselves to good deeds. These things are excellent and profitable for the people.