Following Christ is the most important decision you'll ever make. The next most important decision? Choosing a mate who shares your faith and who will support you in your spiritual growth.
In 2 Corinthians 6:14, the Apostle Paul says that believers should not "be unequally yoked with non-believers." While it's true that this passage does not specifically mention marriage, it does refer to being bound in a relationship with another person—no relationship is more binding than marriage.
The picture of two oxen bound (or yoked) together is often used to explain this Scripture. The oxen must pull in the same direction. Otherwise, they will fight with one another and experience exhaustion.
The same is true of two people who marry but don't share a common faith. Like the oxen pulling in different directions, a couple who doesn't share a Godly foundation will clash and experience conflict.
Perhaps you're not convinced yet, and you wonder, Two people enjoy one another and are mutually attracted, so that's enough to sustain the relationship, right?
If you're thinking about marrying a non-believer, here are some questions you may be faced with answering in the future:
Even well-meaning Christians can fall into the trap of marrying non-believers. The most important piece of advice is that saying he knows Christ doesn't mean he has a relationship with Him.
Marriage based on a common faith is for our benefit, blessing and protection. God wants what is absolutely best for you. Make the decision to follow Him and allow Him to help you find the right mate for you.