In today's modern age, many couples feel that marriage is just a formality. They claim that they don't need to "define their love" by a piece of paper and a $25,000 wedding. Dr. Greg Smalley, author and VP of marriage and family formation for Focus on the Family, weighs in, explaining just how important the marriage covenant is -- and how cohabitation not only is unhealthy relationally, but can lead to eventual divorce.

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