Two Roman Catholic bishops are calling on Catholics to support a proposed constitutional amendment which would define marriage as a heterosexual union in North Carolina, reported.

Bishops Peter Jugis of the Diocese of Charlotte and Michael Burbidge of the Diocese of Raleigh have each recorded videos in support of the amendment.

The videos were posted at the United States Conference of Catholic Bishop's (USCCB) Marriage Unique for a Reason website. The USCCB is headed by Cardinal Timothy Dolan of New York, an ardent opponent of marriage equality.

(Related: Cardinal Timothy Dolan: New York GOP leaders “burned” us on gay marriage.)

“Same-sex unions are unable to realize the unique and full potential that a traditional marriage relationship expresses,” Jugis said in his video. “The Church’s position on traditional marriage is not an instance of discrimination or animosity towards homosexual persons. Marriage is based on natural law, a law that can never be changed; therefore, there will be boundaries that cannot be modified. At the same time, in light of our belief in the inherent dignity of every person without exception, individuals and society must respect those with a homosexual orientation.”

“Catholics believe that the Church has the authority, the obligation, the Gospel mandate, to affirm these authentic teachings and to preserve and foster the supremely sacred value of marriage in our society,” Burbidge said in his nearly 4-minute video. “Our beliefs are principled ones, divinely revealed, and to be regarded seriously in any consideration of marriage and family life.” (The video is embedded in the right panel of this page. Visit our video library for more videos.)

In their presentations, both bishops suggest that gay nuptials threaten the survival of the human race.

(Related: Ted Olson to rally against North Carolina gay marriage ban.)