Ephesians 6:5-9 NASB
5 Slaves, be obedient to those who are your masters according to the flesh, with fear and trembling, in the sincerity of your heart, as to Christ; 6 not by way of eyeservice, as men-pleasers, but as slaves of Christ, doing the will of God from the heart. 7 With good will render service, as to the Lord, and not to men, 8 knowing that whatever good thing each one does, this he will receive back from the Lord, whether slave or free.
9 And masters, do the same things to them, and give up threatening, knowing that both their Master and yours is in heaven, and there is no partiality with Him.