Paul urges believers to be imitators of God, as beloved children, and to walk in love, as Christ loved us and gave himself up for us, a fragrant offering and sacrifice to God. Sexual immorality, all impurity and covetousness must not even be named among the saints, nor crude joking; instead there should be thanksgiving. The immoral have no inheritance in the kingdom of Christ and God, and no one should deceive believers with empty words.
Once they were darkness, but now they are light in the Lord, and they must walk as children of light, whose fruit is goodness, righteousness and truth, discerning what pleases the Lord. They must take no part in the unfruitful works of darkness but rather expose them. A hymn calls the sleeper to awake so that Christ may shine on him.
So they must look carefully how they walk, not as fools but as wise, making the best use of the time because the days are evil and understanding what the will of the Lord is. They must not get drunk with wine but be filled with the Spirit, addressing one another in psalms, hymns and spiritual songs, singing and making melody to the Lord with their hearts and submitting to one another out of reverence for Christ.
Paul then applies that mutual submission to marriage. Wives submit to their husbands as to the Lord, for the husband is the head of the wife as Christ is the head of the church. Husbands love their wives as Christ loved the church and gave himself up for her, to sanctify her and present her in splendor, without spot or wrinkle; they should love them as their own bodies. He cites Genesis: a man shall be joined to his wife and the two shall become one flesh. Paul calls this a profound mystery that refers to Christ and the church, and concludes that each husband should love his wife as himself and that the wife should respect her husband.