Since the word “marriage” and even the word “union” has become so secularized would it be a good idea to create a movement for Christians to use a different term instead of marriage? Though it is not very pretty saying I had a “holy matrimony”, “holy union”, or maybe even a “blessed marriage” could be better then saying you got married. I don’t think there is a biblical mandate that states we have to call the holy matrimony between a man and a woman a marriage so why not change it in more of counter-culture type of thing?
Source: Worthy Christian Forums

