{Unworthily} (anaxi(9373)). Old adverb, only here in N.T.,
not genuine in verse  29 . Paul defines his meaning in verse
 29f . He does not say or imply that we ourselves must be
"worthy" (axioi) to partake of the Lord's Supper. No one would
ever partake on those terms. Many pious souls have abstained from
observing the ordinance through false exegesis here. {Shall be
guilty} (enochos estai). Shall be held guilty as in  Mt 5:21f. 
which see. Shall be guilty of a crime committed against the body
and blood of the Lord by such sacrilege (cf.  Heb 6:6  10:29 ).