What does the Bible say about marrying unbelievers?

The Bible provides clear instruction regarding marriage between believers and unbelievers. In 2 Corinthians 6:14, Paul admonishes Christians not to be unequally yoked with unbelievers, highlighting the inherent discord between righteousness and unrighteousness. This guidance stems from the principle that Christ, who has espoused Himself to believers, does not unite with those who do not share faith in Him. By marrying outside the faith, believers expose themselves to spiritual trials and grieving disappointments, thus the Lord provides this instruction for their protection and benefit.