For it is the life of all flesh; the blood of it is for the life thereof: therefore I said unto the children of Israel, Ye shall eat the blood of no manner of flesh: for the life of all flesh is the blood thereof: whosoever eateth it shall be cut off.<quoted text>
Jesus spoke literally at times and metaphorically other times. When He said He was a vine or a door the disciples didn't question if He really was a door or vine, they knew He wasn't. In John 6 they were incredulous and even said it was a hard teaching, yet He repeated the teaching in even stronger terms.
We know that His dialogue concerning the Eucharist was meant literally because St. Paul teaches it as well, and the fathers of the Church are unanimous.
Only be sure that thou eat not the blood: for the blood is the life; and thou mayest not eat the life with the flesh.
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. For my flesh is meat indeed, and my blood is drink indeed.
When all verses are taken in the literal sense, as Catholics do, you have contradiction in the Bible.
The SBC teaches the first set of verses are in the literal sense, and the second set of verses are in the metaphoric sense...hence no contradiction.....