Any society that wants to survive must have children. It takes a heterosexual couple to make a child and children thrive best when living with both of their biological parents. A father and mother, committed to each other in marriage, are best able to rear and nurture wholesome children to become contributing, taxpaying citizens.
But Christians have lost their credibility to promote this historic understanding of marriage because vast numbers of us are irresponsibly sexually active before marriage and sexually unfaithful after marriage—just like our unbelieving neighbors. There is an alarming lack of Biblical teaching, in many of our churches, about adultery, co-habitation and divorce.
Christian husbands and wives must recommit to keep their marriage vows for a lifetime and raise their biological (and adopted) children in authentic Christian families!