Ephesians 6:5-8

Servants, do what is ordered by those who are your natural masters, having respect and fear for them, with all your heart, as to Christ; Not only under your master's eye, as pleasers of men; but as servants of Christ, doing the pleasure of God from the heart; Doing your work readily, as to the Lord, and not to men: In the knowledge that for every good thing anyone does, he will have his reward from the Lord, If he is a servant or if he is free.