1 Corinthians 11:29
"For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord’s body."
Cross References (ranked by relevance)
Wherefore whosoever shall eat this bread, and drink this cup of the Lord, unworthily, shall be guilty of the body and blood of the Lord.
And when he had given thanks, he brake it, and said, Take, eat: this is my body, which is broken for you: this do in remembrance of me.
Whoso keepeth the commandment shall feel no evil thing: and a wise man’s heart discerneth both time and judgment.
For this cause many are weak and sickly among you, and many sleep.
But strong meat belongeth to them that are of full age, even those who by reason of use have their senses exercised to discern both good and evil.
My brethren, be not many masters, knowing that we shall receive the greater condemnation.
But above all things, my brethren, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yea be yea; and your nay, nay; lest ye fall into condemnation.
Whosoever therefore resisteth the power, resisteth the ordinance of God: and they that resist shall receive to themselves damnation.