What does "Be not Unequally Yoked" mean?
Many readers approach the opening of 2Cor.6:14 with a common misunderstanding. When we see the command, "Be ye not unequally yoked together with unbelievers," we often assume it is a behavioural instruction—a warning not to "act" like the world or to make sure we stay stronger than our partners so we can pull them toward the faith. However, the word unequally is not a description of how much effort you put into the relationship; it is a description of the nature of the relationship itself. The focus of the Apostle Paul is not on how you behave within the bond, but on the functional impossibility of the bond itself.
To truly grasp this, we must understand the yoke itself. In biblical times, a yoke was a heavy wooden beam used to couple two animals together so they could work as a single unit. God established a very specific rule regarding this in the Old Testament: "Thou shalt not plow with an ox and an ass together" (Deut.22:10). This wasn't because the donkey was "bad" or the ox was "better," but because they were fundamentally different. They have different strides, different heights, and different instincts. If you tie them together, the yoke will sit crookedly, galling their necks and making it impossible to plow a straight line. Because they are different "kinds," they can never be equally yoked.