2 Corinthians 6:14 which states, "Do not be yoked together with unbelievers. For what do righteousness and wickedness have in common? Or what fellowship can light have with darkness?" Paul draws on the analogy from Deuteronomy 22:10 which prohibits harnessing an ox and a donkey together for ploughing. The result would be disastrous since they would pull a plow at different speeds and end up going nowher
It is impossible for two different species of animals to pull a plow properly since they have too many incompatible traits. The same is true between a believer and an unbeliever when it comes to dating. The differences are so great Paul contrasts it to light and darkness.
KNOW YOUR MASTER Matthew 6:33 says, "Seek first the kingdom of God and His righteousness." From this relationship, all of life falls into its proper place.
KNOW YOUR MISSION Ephesians 2:10 states, "For we are God's workmanship created in Christ Jesus to do good works which God prepared in advance for us to do."
KNOW YOUR MATE This must follow the first two priorities. The best courting relationships come when two people who know God and know their mission, are walking down the same paths toward the same goal. Somewhere down the road their paths will connect. From that point, they march together on the same path. That meeting point will be determined by God at the best time.
BUILDING UP EACH OTHER Prov 27:17 "As iron sharpens iron, so one man sharpens another." When two swords rub against one another, they result in two even sharper and better swords. The same should be true when two believers are together.
Ask the question- "Do I get closer to God as a result of being with this person?" or "Do I love Jesus more today because of our time together?" If you can answer yes, you have the makings of a healthy relationship.
LOOK AROUND Look at your relationships with your friends, your parents, your pastor, and older mentors. Are these relationships being strengthened or weakened as a result of your relationship? In a healthy relationship, these friendships are strengthened. In unhealthy dating relationships, the couple often isolate themselves from others.