2 Corinthians 6:14 (Whole Chapter)
Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
I wonder if this would apply:
1 Corinthians 5:11 (Whole Chapter)
But now I have written unto you not to keep company, if any man that is called a brother be a fornicator, or covetous, or an idolator, or a railer, or a drunkard, or an extortioner; with such an one no not to eat.
Your verse in 2 Corinthians is dealing with the "yoking" of believers and non-believers. Almost every commentary I've read on that scripture is in agreement that Paul was addressing believers marrying unbelievers.
Your verse from 1 Corinthians sounds applicable until you add in 1 Corinthians 5:9-10.
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In essentials, unity. In non-essentials, liberty. In all things, charity. Augustine