John Calvin's Commentary on the Bible - 1 Corinthians 11:27
Verse 27 27.Therefore he who shall eat this bread unworthily. If the Lord requires gratitude from us in the receiving of this sacrament — if he would have us acknowledge his grace with the heart, and publish it with the mouth — that man will not go unpunished, who has put insult upon him rather than honor; for the Lord will not allow his commandment to be despised. Now, if we would catch the meaning of this declaration, we must know what it is to eat unworthily Some restrict it to the... read more
Adam Clarke's Commentary on the Bible - 1 Corinthians 11:30
For this cause - That they partook of this sacred ordinance without discerning the Lord's body; many are weak and sickly: it is hard to say whether these words refer to the consequences of their own intemperance or to some extraordinary disorders inflicted immediately by God himself. That there were disorders of the most reprehensible kind among these people at this sacred supper, the preceding verses sufficiently point out; and after such excesses, many might be weak and sickly among them,... read more