NET
14 Do not become partners with those who do not believe, for what partnership is there between righteousness and lawlessness, or what fellowship does light have with darkness?
Darby
14 Be not diversely yoked with unbelievers; for what participation [is there] between righteousness and lawlessness? or what fellowship of light with darkness?
KJV
14 Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?