The Church’s teaching on cohabitation is not an “arbitrary” rule. Living together before marriage is a sin because it violates God’s commandments and the law of the Church. St. Paul lists this sin – technically called “fornication” among the sins (whether within or outside cohabitation) that can keep a person from reaching heaven (see 1 Corinthians 6:9) Cohabitation works against the heart’s deepest desires and greatly increases the chances of a failed marriage.
If you are honest with yourself, every practical consideration will tell you that separating before marriage is the right thing to do. It is a decision to turn away from sin and to follow Christ and His teaching. That is always the right decision. But it’s a good decision for other important reasons, too:
- it will strengthen your marriage
- it will deepen your friendship
- it will foster deeper intimacy and communion
- it will build up your problem-solving and communications skills
- it will give your marriage a greater chance for success
You may think you are unique and that your passion for each other will never wane. But that’s what most couples think. No one goes into marriage planning for a breakup; yet a majority of couples today do break up. You want to be one of the exceptional couples who not only succeed in marriage, but also live together in happiness and fulfillment.
Some couples who are living together think that separation before marriage is artificial or meaningless. Some fear that halting sexual activity will be harmful to the relationship. But this is rarely the case. Sometimes in marriage, too, a sexual relationship will have to be suspended for a time due to illness, military service, business travel, or the good of a spouse. Relationships not only survive this , but actually grow stronger. God rewards such sacrifices with graces for a good relationship. Abstaining from sex will also enable you to rely on other means of communication, which ultimately will empower you to get to know each other in a deeper, lasting way.