The picture of two oxen bound (or yoked) together is often used to explain this Scripture. Otherwise, they will fight with one another and experience exhaustion.
The same is true of two people who marry but don't share a common faith.
You probably think nothing will happen, it doesn’t matter, you know better than God, but you’re wrong.
And then here’s something you may want to view on this issue, talked about by Pastor Tim Keller.For some reason, when it concerns matters of the heart, we can often be swayed to wander further outside of God’s boundaries than we may on other matters. For what partnership has righteousness with lawlessness? Therefore go out from their midst, and be separate from them,’ says the Lord, and touch no unclean thing; then I will welcome you, and I will be a father to you, and you shall be sons and daughters to me, says the Lord Almighty.’ For those of you who are dating, or are tempted to date a nonbeliever, I’d like to challenge you to reconsider.To help you in this mission I have provided links below to several thought-provoking articles and videos.As you know, there are some Christians who believe that any dating is inappropriate.It seems to me that one has trouble defending this view from Scripture.