Actually, you are just way off in your understanding of these scriptures.   Jesus is telling them that divorce is only acceptable due to infidelity or adultery, this has nothing to do with depravity, or anything ongoing.  It was enough that if a spouse cheated, especially, if a woman cheated on a man, in Judaism, that the divorce be allowed because now that cheating spouse is deemed unclean under the law.  Therefore, Jesus is supporting the Law that the abused spouse may divorce but even if that spouse remarries, they too will still be committing adultery.   Jesus rebuked the practice of divorcing for any other reason.  

You misunderstood the Cor. reading because you took the passage out of context.
Cor:  29   For anyone who eats & drinks without recognizing the body, eats & drinks judgment on himself. 30 That is why many among you are weak. ."

Paul is saying eating Eucharist, without belief the Eucharist is Jesus, is harmful instead of healing.  Paul did not say abstain due to sin.