No law shall be passed except by bill, and no bill shall be so altered or amended on its passage through either house as to change its original purpose. The enacting clause of all bills shall be: “Be it enacted by the legislature of the state of New Mexico.” Any bill may originate in either house. No bill, except bills to provide for the public peace, health and safety, and the codification or revision of the laws, shall become a law unless it has been printed, and read three different times in each house, not more than two of which readings shall be on the same day, and the third of which shall be in full.