Marriage is not a human contrivance or arrangement, but God’s ordinance, something instituted by God, something that God in His infinite grace and kindness has appointed and ordained and prepared and established for men and women. It is of God and not of man. The teaching of the anthropologists is based on speculation and imagination; it is not true. The teaching of the Bible is the truth about this matter; it is God’s contrivance and God’s ordinance.
D. Martyn Lloyd-Jones, Life in the Spirit in Marriage, Home & Work: An Exposition of Ephesians 5:18-6:9, pg. 97