Marriage is an institution found in every society, culture or religion in the world. The Catholic Church has maintained most of her seven Sacraments including that of marriage. The Church of Sweden, an established Evangelical Lutheran faith, born out of the 16^th century Reformation has two Sacraments excluding marriage. This field study was carried out in Gävle, Sweden in spring 2009. A comparative study of marriage in the Catholic Church and the Church of Sweden and the reason each church alludes to based on scripture and tradition was to help me, an African Catholic, understand differences between the respective churches and also understand why the Church of Sweden accepts same sex marriages. This was my motivation for writing this paper. I hope this paper will serve as a study guide to new people who come to Sweden from other cultures to enable them understand why the “Modus Operandi” regarding church marriage in Sweden is different from the church marriage in their native countries.