Contradiction with John 6:53
Jesus speaks about eating His flesh and drinking His blood, emphasizing a spiritual meaning rather than the specific tradition of the Lord's Supper depicted in 1 Corinthians 11:23.
John 6:53: Then Jesus said unto them, Verily, verily, I say unto you, Except ye eat the flesh of the Son of man, and drink his blood, ye have no life in you.
Contradiction with Hebrews 10:10
Discusses a single, ultimate sacrifice by Jesus, suggesting no ongoing ritual is necessary, which may seem in contrast to the commemoration of the Last Supper event in 1 Corinthians 11:23.
Hebrews 10:10: By the which will we are sanctified through the offering of the body of Jesus Christ once [for all].