Ephesians 6:5-8

MKJV(i) 5 Slaves, obey your masters according to the flesh, with fear and trembling, in singleness of your heart, as to Christ; 6 not with eye-service, as men-pleasers, but as the servants of Christ, doing the will of God from the heart, 7 with good will doing service as to the Lord and not to men 8 (knowing that whatever good thing he does, he shall receive the same from the Lord, whether he is a slave or a freeman).