This passage from 1 Corinthians discusses the importance of properly observing communion or the Lord's Supper. It describes how Jesus instituted communion on the night before his crucifixion by taking bread and wine and saying they represented his body and blood. The passage emphasizes that taking communion is meant to remember and honor Jesus' death. It warns that taking communion irreverently is disrespectful to Jesus and could have serious spiritual consequences, which is why some Christians became ill or died after doing so. Believers are encouraged to examine their hearts and approach communion with holy awe and respect for Jesus.