Do not be yoked together with unbelievers. For what do righteousness and wickedness have in common? Or what fellowship can light have with darkness?
NIV
Do not be unequally yoked with unbelievers [do not make mismated alliances with them or come under a different yoke with them, inconsistent with your faith]. For what partnership have right living and right standing with God with iniquity and lawlessness? Or how can light have fellowship with darkness?
AMP
Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
KJV
"Now then, get a new cart ready, with two cows that have calved and have never been yoked. Hitch the cows to the cart, but take their calves away and pen them up."
NIV
Now then, make and prepare a new cart and two milch cows on which no yoke has ever come; and yoke the cows to the cart, but take their calves home, away from them.
AMP
Now therefore make a new cart, and take two milch kine, on which there hath come no yoke, and tie the kine to the cart, and bring their calves home from them:
KJV