Biblical Answer

No, it is not a sin for a Catholic to marry an evangelical. The Bible teaches that marriage is a union between one man and one woman (Matthew 19:4-6, Genesis 2:24), and it is not the denomination or faith of the other person that is the primary consideration. What is important is that the person is a Christian, regardless of their denomination or background. In fact, the Bible teaches that believers from different backgrounds can come together in unity and love (Ephesians 4:1-6, Colossians 3:14).

However, it is worth noting that there may be cultural or family differences that could potentially cause difficulties in a marriage between a Catholic and an evangelical. For example, there may be differences in worship styles, sacraments, or theological beliefs that could create tension or conflict. Nevertheless, these differences can also be opportunities for growth and learning, and with love, respect, and open communication, they can be overcome.

Ultimately, the decision to marry someone from a different denomination or faith background should be based on a shared commitment to Jesus Christ and a desire to follow Him together. If both partners are committed to their faith and are willing to work through any differences that may arise, then a marriage between a Catholic and an evangelical can be a beautiful expression of God's love and unity. As the Bible says, "Love is patient, love is kind. It does not envy, it does not boast, it is not proud. It does not dishonor others, it is not self-seeking, it is not easily angered, it keeps no record of wrongs. Love does not delight in evil but rejoices with the truth. It always protects, always trusts, always hopes, always perseveres" (1 Corinthians 13:4-7).