The Bible does not specifically address this topic, but it does give us insight into what we should seek in a potential spouse. The first, and best, advice is to pray about it. God will give wisdom and guidance if you ask for it. “If any of you lacks wisdom, he should ask God, who gives generously to all without finding fault, and it will be given to him” (James 1:5).
Second Corinthians 6:14 instructs, “Do not be yoked together with unbelievers. For what do righteousness and wickedness have in common? Or what fellowship can light have with darkness?” The first question to ask is whether the potential spouse is devoted to God. If he/she is not, that person should not be considered for a potential spouse. On the other hand, just because one follows Christ, that does not make him/her the right choice. Being “equally yoked” can also go deeper than just “Is he/she a Christian?” There are many different beliefs in Christianity, and this should be taken into account when choosing a potential spouse. Consider what marriage would be like with this person. Are your beliefs close enough that you can agree to teach your children the same doctrines? This is of great importance.
For men, it’s important to look at what a Christian wife is supposed to be. “Wives, submit to your husbands as to the Lord. For the husband is the head of the wife as Christ is the head of the church, His body, of which He is the savior. Now as the church submits to Christ, so also wives should submit to their husbands in everything” (Ephesians 5:22-24). Paul tells us that a wife is to be submissive to her husband, out of love. This does not necessarily mean that the girl you are considering a relationship with should submit wholly to you. In dating she is not obligated to. However, she should not have a rebellious spirit, but should submit to the authorities she is under, out of love. She should be willing to be led. Proverbs 31:10-31 tells us what the “wife of noble character” is like. She is hard working, generous and charitable, strong, and wise. You may not be able to find all of these traits in one person, but these are desirable traits and pleasing to God.
Another scripture describing a wife who is pleasing to God is 1 Peter 3:1-4: “Wives, in the same way be submissive to your husbands so that if any of them do not believe the word, they may be won over without words by the behavior of their wives, when they see the purity and reverence of your lives. Your beauty should not come from outward adornment, such as braided hair and the wearing of gold jewelry and fine clothes. Instead it should be that of your inner self, the unfading beauty of a gentle and quiet spirit, which is of great worth in God’s sight.” This tells us that a woman should be pure and living for Christ so that she can win a lost husband over without words. It also indicates that she should not be as concerned about outward appearances as she is about her spiritual life.
For women, there are a few illustrations of what a Christian husband is to be. Although the person you are considering a relationship with is not your husband, you should look for qualities that display this kind of love. “Husbands, love your wives, just as Christ loved the church and gave Himself up for her to make her holy, cleansing her by the washing with water through the word, and to present her to himself as a radiant church, without stain or wrinkle or any other blemish, but holy and blameless” (Ephesians 5:25-27). Is he loving? Is he willing to lead people toward Christ and help them to be holy and blameless? Is he a leader? A man should love God above all else and be willing to help his brothers and sisters in Christ to strive to be holy and pleasing to God. He should be humble, wise, and merciful, just as Christ was. Watch for these qualities in a man, because this is what is pleasing to God.
You will not find a “perfect” person with all of these qualities, but God will let you see if someone you are considering a relationship with is striving to be pleasing to Him. Just as with any other big decision in life, relationships should be treated with caution, wisdom, and handled with discernment and much prayer.