A "husband and wife have a solemn responsibility to love and care for each other and for their children. The home is to be God’s laboratory of love and service,” said President Russell M. Nelson, President of the Quorum of the Twelve Apostles.
In the Book of Mormon, Jacob said that the love that husbands had for their wives, the love that wives had for their husbands, and the love that both had for their children was among the reasons the Lamanites were at one point more righteous than the Nephites (see Jacob 3:7).
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Supplemental Reading: In his April 2016 general conference "In Praise of Those Who Save," President Dieter F. Uchtdorf discussed the importance of husbands and wives working together to help their families:
"I am grateful that I belong to a church that values marriage and family. Members of The Church of Jesus Christ of Latter-day Saints are known throughout the world for having some of the finest marriages and families you can find. I believe this is, in part, due to the precious truth restored by Joseph Smith that marriages and families are meant to be eternal. Families are not just meant to make things run more smoothly here on earth and to be cast off when we get to heaven. Rather, they are the order of heaven. They are an echo of a celestial pattern and an emulation of God’s eternal family.
But strong marriage and family relationships do not happen just because we are members of the Church. They require constant, intentional work. The doctrine of eternal families must inspire us to dedicate our best efforts to saving and enriching our marriages and families. I admire and applaud those who have preserved and nourished these critical, eternal relationships."
Read the full talk at lds.org.