Authorized Version
    For he that eateth and drinketh unworthily, eateth and drinketh damnation to himself, not discerning the Lord's body.

American Standard Version
    For he that eateth and drinketh, eateth and drinketh judgment unto himself, if he discern not the body.

The Bible in Basic English
    For a man puts himself in danger, if he takes part in the holy meal without being conscious that it is the Lord's body.

The Darby Bible
    For [the] eater and drinker eats and drinks judgment to himself, not distinguishing the body.

The Webster Bible
    For he that eateth and drinketh unworthily, eateth and drinketh condemnation to himself, not discerning the Lord's body.

Young's Literal Translation
    for he who is eating and drinking unworthily, judgment to himself he doth eat and drink -- not discerning the body of the Lord.

World English Bible
    For he who eats and drinks in an unworthy manner eats and drinks judgment to himself, if he doesn't discern the Lord's body.