"My constituents elected me, but the main authority that rules my life is the Lord," she said in an exclusive interview with ABC News' Paula Faris.
Davis, who has been married four times and had children in an adulterous relationship, said she doesn't consider herself a hypocrite. Davis said she believes that she was forgiven of her sins when she accepted God four years ago.
"I haven't always been a good person," she said in a new interview. "When I didn't live for God, I didn't live for Him. And I was real good at living for the devil."
Though Davis has received messages of support, she has also received hate mail. She showed Faris messages comparing her to Hitler and threatening to kill her.
Davis said that she'll go back to jail before changing her position. Her deputies in Rowan County, meanwhile, have been issuing all marriage licenses for her. Davis said those are not valid.
"I can't put my name on a license that doesn't represent what God ordained marriage to be," she said. "They're not valid in God's eyes, for one. And I think the authority, I have given no authority to write a marriage license. They did not have my permission. They did not have my authorization."
Davis, who was elected as a Democrat in November, said she has friend who are gay, and they agree to disagree.
When asked about the happiness and dignity celebrated by same-sex couples who have received licenses through her office, Davis said she doesn't believe that those feelings are a Constitutional right.
"I don't think dignity is guaranteed in the Constitution," she said. "I think dignity is something that you find within yourself."
See more of Paula Faris' interview with Kim Davis during The View and Nightline Tuesday.