The Family: A Proclamation to the World states:

"Happiness in family life is most likely to be achieved when founded upon the teachings of the Lord Jesus Christ."

I think of how that relates to Arcticle of Faith 13:

"We believe in being honest, true, chaste, benevolent, virtuous, and in doing good to all men; indeed, we may say that we follow the admonition of Paul - We believe all things, we hope all things, we have endured many things, and hope to be able to endure all things. If there is anything virtuous, lovely, or of good report or praiseworthy, we seek after these things."