1. 2 Corinthians 6:14
"Do not be yoked together with unbelievers. For what do righteousness and wickedness have in common? Or what fellowship can light have with darkness?"
Though addressing broader spiritual partnerships, this passage applies fundamentally to marriage and dating relationships. A "yoke" was a wooden frame joining two oxen for farm work - when unequally matched, "the weaker or shorter ox would walk more slowly," causing the team to "go around in circles" rather than accomplish their task. Similarly, marriages between believers and unbelievers create spiritual tension, competing loyalties, and conflicting life goals. Paul's rhetorical questions emphasize fundamental incompatibilities: "righteousness and wickedness" represent different moral foundations, "light and darkness" symbolize contrasting spiritual realities, and "temple of God and idols" show incompatible worship. Since "common faith in Christ was central to the marriage relationship" and dating should prepare for marriage, believers should seek partners who share their deepest spiritual commitments for genuine unity and shared mission (Got Questions).