Ephesians 6:5-8

5Servants, be obedient to them that are your masters according to the flesh, with fear and trembling, in singleness of your heart, as unto Christ; 6Not with eyeservice, as menpleasers; but as the servants of Christ, doing the will of God from the heart; 7With good will doing service, as to the Lord, and not to men: 8Knowing that whatsoever good thing any man doeth, the same shall he receive of the Lord, whether he be bond or free. (KJV)