The LDS Church is calling on Mormons to get involved in the debate surrounding a proposal to legalize gay marriage in Hawaii.

According to The Salt Lake Tribune, the Church of Jesus Christ of Latter-day Saints told congregations in a letter dated September 15 to “study this legislation prayerfully and then as private citizens contact your elected representatives in the Hawaii Legislature to express your views about the legislation.”

LDS leaders said that members should first study the church's The Family: A Proclamation to the World, which strongly suggests that allowing gay and lesbian couples to marry will lead to the end of civilization.

“The family is ordained by God,” the document states. “Marriage between man and woman is essential to His eternal plan. Children are entitled to birth within the bonds of matrimony, and to be reared by a father and a mother who honor marital vows with completely fidelity.”

“We warn that the disintegration of the family will bring upon individuals, communities and nations the calamities foretold by ancient and modern prophets.”

The letter, read to congregations across Hawaii, asked members to push for “a stronger exemption for people and organizations of faith” that would protect individuals, businesses and groups “from being required to support or perform same-sex marriages or from having to host same-sex marriages or celebrations in their facilities; and protect individuals and small businesses from being required to assist in promoting or celebrating same-sex marriages.”

(Related: Hawaii could legalize gay marriage by November 1.)

In 2008, the church was heavily involved in passage of Proposition 8, California's now-defunct gay marriage ban, raising millions of dollars through volunteers for the “Yes on 8” campaign. Gay rights activists reacted by staging large demonstrations outside Mormon temples in California and Utah.

Hawaii has the highest concentration of Latter-day Saints of states that do not border Utah.