If you have died to the things in this world and your life is hidden in Christ (Colossians 3) and your spouse is not even a Christian, how can you call this person “your soulmate”?
If you are a Christian and you married a non-Christian, you are playing Russian Roulette with your soul and those of your children.
Yes, some Christians have converted their mates to Christ during marriage, but all too often, it is the non-Christian who “converts” the Christian into unfaithfulness to God, often though what they call “compromise”. Often this takes the form of the Christian agreeing to stay home with their non-Christian spouse during the worship services “to keep him/her happy.” First of all, the word “compromise” is not in God’s vocabulary when it comes to a Christian’s relationship with the Lord. And if you love your spouse more than God, then your heart, loyalty, and priorities are not in the proper order.
In some rare cases, a non-Christian mate may compromise and become a Christian just to please the Christian spouse. If you became a Christian for no other reason than just to please your spouse, you did it for the wrong reason and your baptism was nothing more than just getting wet if you didn’t do it for forgiveness of sins and to live a new life in Christ. If you did it for your spouse and not for Christ, then you became a Spouse-ian and not a Christ-ian.
Marrying a Christian is doubly important to a Christian woman, because the man she marries will the head of her household. When the Christian woman places herself in a position to submit to a non-Christian husband, she can expect conflict and trouble in her marriage. I’ve seen it happen more than once.
In this age of half of married couples divorcing due to “irreconcilable differences,” what can be more different than a Christian being married to someone unfaithful to God? God hates divorce (Malachi 2:16).
If you want your children to grow into Christians, it is not wise to choose a non-Christian as one of the parents to raise those children. The children are more likely to become Christians when both of their parents are spiritual role models, both of whom will raise their children in Christ.
I don’t know how a Christian can sleep at night when their mate is not in a saved condition. I definitely could not sleep, and even if I did, I would have nightmares when I realize that if my non-Christian wife never wakes up from her sleep, she is eternally lost. Decades of happy marriage on Earth are a mere drop of water in the ocean when compared to eternal separation from your mate. The thought of me going to Heaven, but my wife spending eternity in eternal torment in Hell because she never obeyed the gospel is a thought that is too painful to bear.
If you marry a non-Christian because she is pretty and has a pleasant personality, just remember that physical beauty fades away with age, and that her soul is headed for destruction if she remains unfaithful to God. Temporary happiness is not worth the eternal cost often paid when marrying a non-Christian.
If you are dating a non-Christian, then by all means try to win him/her over to Christ before making the lifetime commitment that is marriage. But if your boyfriend’s or girlfriend’s heart hardens when spiritual matters are concerned, then it is best for you and your future children to let this person go and marry someone else who will truly be your soulmate in Christ and who will join you in Heaven someday.