"The ultimate end of all activity in the Church is that a man and his wife and their children might be happy at home, protected by the principles and laws of the gospel, sealed safely in the covenants of the everlasting priesthood. Every law and principle and power, every belief, every ordinance and ordination, every covenant, every sermon and every sacrament, every counsel and correction, the sealing, the calls, the releases, the service—all these have as their ultimate purpose the perfection of the individual and the family, for the Lord has said, 'This is my work and my glory—to bring to pass the immortality and eternal life of man.'...You have the power of the priesthood directly from the Lord to protect your home. There will be times when all that stands as a shield between your family and the adversary’s mischief will be that power. You will receive direction from the Lord by way of the gift of the Holy Ghost." (Elder Boyd K. Packer, The Power of the Priesthood, Ensign, May 2010"