1 Corinthians 11:30 YLT

²⁸  and let a man be proving himself, and so of the bread let him eat, and of the cup let him drink;

²⁹  for he who is eating and drinking unworthily, judgment to himself he doth eat and drink -- not discerning the body of the Lord.

³⁰  Because of this, among you many 'are' weak and sickly, and sleep do many;

³¹  for if ourselves we were discerning, we would not be being judged,

³²  and being judged by the Lord, we are chastened, that with the world we may not be condemned;