How do we know the doctrine of the Lord's Supper is true?

The doctrine of the Lord's Supper is affirmed through explicit Biblical testimony, particularly in Paul's instruction to the Corinthians. He begins in 1 Corinthians 11:23 by stating, 'For I received of the Lord that which also I delivered unto you.' This emphasizes that the practice is rooted in divine authority and revelation. By participating in the Lord's Supper, believers are not only obeying Christ's command but are also fulfilling a vital aspect of their faith by proclaiming His death and the New Covenant established in His blood.