Note 4 at 1 Cor. 11:26: The Lord's Supper came from a part of the Passover meal (see note 3 at Lk. 22:16, p. 473) which was celebrated only once each year. However, the early Christian church took Communion weekly (Acts 20:7) and sometimes daily (Acts 2:46). There is no frequency of the Lord's Supper prescribed in scripture.

Note 5 at 1 Cor. 11:26: According to Fritz Rienecker's Linguistic Key to the Greek New Testament, the Greek word "kataggello" that was translated "show" here "is used in the sense of making a solemn announcement by word of mouth" (see ref. k at this verse). So, as we take Communion, we are solemnly proclaiming the Lord's death, and our union with Him through that death to ourselves as well as others. This is a profession of our faith and therefore, there are serious consequences for those who profess something they don't possess (see note 7 at v. 27, below).