Unequally Yoked

1 Corinthians 7:15 - But if the unbelieving depart, let him depart. A brother or a sister is not under bondage in such cases: but God hath called us to peace.
2 Corinthians 6:14 - Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
2 Timothy 3:5 - Having a form of godliness, but denying the power thereof: from such turn away.