What Is the Family?
The Bible defines "family" in a narrow sense as the union of one man and one woman in matrimony which is normally blessed with one or several natural or adopted children. In a broad sense, this family also includes any other persons related by blood (the extended family). In the book of Genesis, we read that God in the beginning created first a man (Adam) to exercise dominion over his creation and subsequently a woman (Eve) as the man's "suitable helper" (Genesis 2:18, 20). Then, the inspired writer remarks, "Therefore a man shall leave his father and his mother and hold fast to his wife, and they shall become one flesh" (Genesis 2:24 ESV). This verse sets forth the biblical pattern as it was instituted by God at the beginning: one man is united to one woman in matrimony, and the two form one new natural family. In this regard, "become one flesh" not only refers to the establishment of one new family but also to the husband and wife's sexual union leading to the procreation of offspring. This, in turn, is in keeping with God's original command to the first human couple to "be fruitful and multiply and fill the earth and subdue it and have dominion" over all of creation (Genesis 1:28).
These aspects of marriage--the complementarity of male and female, and the irreplaceable role of male-female relations in reproducing the human race--are part of the original order of creation, and are evident to all human beings from the enduring order of nature. These common elements of marriage are at the heart of our civil laws defining and regulating marriage. Therefore, people of all cultures and religions--including those who lack faith in God, Christ, or the Bible--are capable of participating in the institution of marriage. However, we who are Christians believe that the fullest understanding of God's will for marriage can be derived from a careful examination of scriptural teachings. It is incumbent upon the church to educate both itself and the larger culture regarding the full breadth and depth of God's intentions for marriage.