Ephesians 6:5-8

5Bondservants, be obedient to those who are your masters according to the flesh, with fear and trembling, in sincerity of heart, as to Christ;

6not with eyeservice, as men-pleasers, but as bondservants of Christ, doing the will of God from the heart,

7with goodwill doing service, as to the Lord, and not to men,

8knowing that whatever good anyone does, he will receive the same from the Lord, whether he is a slave or free.