Breaking..the communion...unworthily

The apostle describes the sacred ordinance, of which he had the knowledge by revelation from Christ.  As to the visible signs, these are the bread and wine. What is eaten is called bread, though at the same time it is said to be the body of the Lord, plainly showing that the apostle did not mean that the bread was changed into flesh. St. Matthew tells us, our Lord bid them all drink of the cup, ch. Mt 26:27, as if he would, by this expression, provide against any believer being deprived of tbodyup.  The things signified by these outward signs, are Christ's body and blood, his body broken, his blood shed, together with all the benefits which flow from his death and sacrifice. Our Saviour's actions were, taking the bread and cup, giving thanks, breaking the bread, and giving both.  The actions of the communicants were, to take the bread and eat, to take the cup and drink, and to do both, in remembrance of Christ. But the outward acts are not the whole, or the principal part, of what is to be done at this holy ordinance which is to remember Christ.  Those who partake of it, are to take him as their Lord and Life, yield themselves up to him, and live upon him. Here is an account of the ends of this ordinance. It is to be done in remembrance of Christ, to keep fresh in our minds his dying for us, as well as to remember Christ pleading for us, in virtue of his death, at God's right hand. It is not merely in remembrance of Christ, of what he has done and suffered; but to celebrate his grace in our redemption. We declare his death to be our life, the spring of all our comforts and hopes. We show forth his death, and plead it as our accepted sacrifice and ransom. The apostle was addressing Christians, and warning them.  If we would thoroughly search ourselves, to condemn and set right what we find wrong, we should stop Divine judgements. The apostle closes all with a caution against the irregularities of the Corinthians. The breaking of bread is not as important as what Christ did on the cross, and the defilement of the body by sin has the consequence, death of the body. 1 Corinthians 11:30 Commentaries