"The Lord has directed, “Bring up your children in light and truth.” (D&C 93:40.) To me, there is no more important human effort.
"Being a father or a mother is not only a great challenge, it is a divine calling. It is an effort requiring consecration. President David O. McKay stated that being parents is “the greatest trust that has been given to human beings.” (The Responsibility of Parents to Their Children, pamphlet, Salt Lake City: The Church of Jesus Christ of Latter-day Saints, n.d., p. 1.)
"While few human challenges are greater than that of being good parents, few opportunities offer greater potential for joy. Surely no more important work is to be done in this world than preparing our children to be God-fearing, happy, honorable, and productive. Parents will find no more fulfilling happiness than to have their children honor them and their teachings. It is the glory of parenthood. John testified, “I have no greater joy than to hear that my children walk in truth.” (3 Jn. 1:4.) In my opinion, the teaching, rearing, and training of children requires more intelligence, intuitive understanding, humility, strength, wisdom, spirituality, perseverance, and hard work than any other challenge we might have in life."
James E. Faust, “The Greatest Challenge in the World—Good Parenting,” Ensign, Nov 1990, 32