2 Corinthians 6:11-15

O ye Corinthians, our mouth is open unto you, our heart is enlarged. Ye are not straitened in us, but ye are straitened in your own bowels. Now for a recompence in the same, (I speak as unto my children,) be ye also enlarged. Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness? And what concord hath Christ with Belial? or what part hath he that believeth with an infidel?