A. A valid marriage is contracted by a male person and a female person with a proper marriage license who participate in a ceremony conducted by and in the presence of a person who is authorized to solemnize marriages and at which at least two witnesses who are at least eighteen years of age participate.
B. A marriage license shall be signed by both persons married, two of the witnesses to the marriage ceremony and the person who solemnized the marriage, who shall return the signed marriage license to the clerk of the superior court for recording.
C. This section does not apply to the conversion of an existing marriage that is valid in this state to a covenant marriage that complies with the requirements of section 25-902.