The amendment would help protect the state's current law, which defines marriage as between a man and a woman, from being changed or challenged in court. The amendment will not affect whether private companies choose to recognize same-sex unions.
The Raleigh News & Observer reports House Speaker Pro Tem Dale Folwell and House Majority Leader Paul "Skip" Stam are among the amendment's supporters.
Stam said the amendment would protect "the children of the next generation" and suggested that the legalization of same-sex marriage would ultimately lead to polygamy.