Christians marrying unbelievers creates what the Bible calls being "unequally yoked," and here's why this matters more than you think. When two people have completely different worldviews, it affects every major decision from raising kids to handling money to spending weekends. The believer often feels spiritually lonely, unable to share their deepest values with each other. Meanwhile, the unbeliever might feel judged or pressured to change. Scripture warns about this in Second Corinthians 6:14 because relationships thrive on shared foundations, not constant compromise on core beliefs. While love feels powerful enough to overcome anything, practical daily life reveals these differences create ongoing tension that most couples underestimate before marriage.