“When Our Children Go Astray,” Elder John K. Carmack of the Seventy, Ensign, February 1997

https://www.lds.org/ensign/1997/02/when-our-children-go-astray?lang=eng

“When A Child Leaves the Church,” by Robin Zenger Baker, Ensign, February 2016, p. 44-47

https://www.lds.org/ensign/2016/02/when-a-child-leaves-the-church?lang=eng

"Persons must so live that they can enjoy the light of the Holy Spirit, or they will have no confidence in themselves, in their religion, or in their God, and will sooner or later turn from the faith."

- Brigham Young, Teachings of Presidents of the Church: Brigham Young, (1997), 41–47, Chapter 6: The Communication between God and Man
http://www.lds.org/manual/teachings-brigham-young/chapter-6?lang=eng

God will save all who are determined to be saved

"Let those apostatize who wish to, but God will save all who are determined to be saved (DBY, 86)."

- Brigham Young, Teachings of Presidents of the Church: Brigham Young, (1997), 78–84
http://www.lds.org/manual/teachings-brigham-young/chapter-12?lang=eng

One of the first steps to apostasy is to find fault with your Bishop

"One of the first steps to apostasy is to find fault with your Bishop; and when that is done, unless repented of a second step is soon taken, and by and by the person is cut off from the Church, and that is the end of it. Will you allow yourselves to find fault with your Bishop? (DBY, 86)."

- Brigham Young, Teachings of Presidents of the Church: Brigham Young, (1997), 78–84
http://www.lds.org/manual/teachings-brigham-young/chapter-12?lang=eng

If we look for human frailty in humans, we will always find it

"Satan will always work on the Saints of God to undermine their faith in priesthood keys. One way he does it is to point out the humanity of those who hold them. He can in that way weaken our testimony and so cut us loose from the line of keys by which the Lord ties us to Him and can take us and our families home to Him and to our Heavenly Father....

"The warning for us is plain. If we look for human frailty in humans, we will always find it. When we focus on finding the frailties of those who hold priesthood keys, we run risks for ourselves. When we speak or write to others of such frailties, we put them at risk.

"We live in a world where finding fault in others seems to be the favorite blood sport. It has long been the basis of political campaign strategy. It is the theme of much television programming across the world. It sells newspapers. Whenever we meet anyone, our first, almost unconscious reaction may be to look for imperfections.

"To keep ourselves grounded in the Lord’s Church, we can and must train our eyes to recognize the power of the Lord in the service of those He has called. We must be worthy of the companionship of the Holy Ghost. And we need to pray for the Holy Ghost to help us know that men who lead us hold this power. For me, such prayers are most often answered when I am fully engaged in the Lord’s service myself."

- Elder Henry B. Eyring, Of the Quorum of the Twelve Apostles, "Faith and Keys," Ensign, Nov 2004, p. 28
http://www.lds.org/ensign/2004/11/faith-and-keys?lang=eng

Apostasy a consequence of bad choices

"Now, I need to be very clear about these historically reoccurring periods of apostasy and spiritual darkness. Our Heavenly Father loves all of His children, and He wants them all to have the blessings of the gospel in their lives. Spiritual light is not lost because God turns His back on His children. Rather, spiritual darkness results when His children turn their collective backs on Him. It is a natural consequence of bad choices made by individuals, communities, countries, and entire civilizations. This has been proven again and again throughout the course of time. One of the great lessons of this historical pattern is that our choices, both individually and collectively, do result in spiritual consequences for ourselves and for our posterity."

- M. Russell Ballard, Of the Quorum of the Twelve Apostles, "Learning the Lessons of the Past," General Conference, Apr 2009
http://www.lds.org/general-conference/2009/04/learning-the-lessons-of-the-past?lang=eng

Nations that turn against the gospel fail to prosper

"No nation can, as a nation, turn against the plan of life and salvation when it is offered to her people and continue to prosper."

- Heber J. Grant as quoted in The Testimony of President Heber J. Grant by Gerrit DeJong Jr., 43