'Duties' in the Bible

Practice and work hard on these things; be absorbed in them [completely occupied in your ministry], so that your progress will be evident to all.

Elders who handle their duties well should be considered worthy of double compensation, especially those who work hard at preaching and teaching.

Those who have believing masters are not to be disrespectful toward them because they are brothers [in Christ], but they should serve them even better, because those who benefit from their kindly service are believers and beloved. Teach and urge these [duties and principles].