It was God's design that children come from two people who love each other and are married. Too many babies are born to women who are not married. Too many people ignore the relationships that God intended. God is not glorified when children are born to parents who are not married to each other. A wise man once told me that the most important thing a man can do for his children is to love their mother.
Children learn to treat their parents the way they see the parents treat each other.
They develop attitudes about service and love from their parents. A boy learns how he will eventually treat his own wife by the example set in the home by his father. A girl learns how she will eventually respect her own husband by the way her mother shows respect for her father. God is glorified when homes are formed by a man and woman getting married according to the laws of the country in which they live. God is glorified when this husband and wife become spiritually united through their love for and commitment to Jesus Christ.