Servants, be obedient to them that are your masters according to the flesh, with fear and trembling, in singleness of your heart, as unto Christ. 6:5
Trivia: According to Ephesians 5, who is the head of the wife?
Wives must submit to their husbands "in every thing" as though they were Christ. "For the husband is the head of the wife." 5:22-24