Marriage is NOT a sacrament. Matrimony is a sacrament. If marriage were a sacrament Jews, Muslims and atheists would not be able to get married. Marriage is a secular contract regulated by the state and in most parts of the world one must first get married before a registrar and then proceed to the church to contract Matrimony. It is remarkable that in the United States with its strict separation of Church and State that the clergyman and registrar is the same person.