What an odd thing to state, particularly you cite the scripture from which the teaching is drawn.
Do we need to eat Jesus’ flesh AND blood,M
Christ is fully present in both. Not to be indelicate but have you ever had a piece of fleshmeat with no and I mean NO blood still present in it?
Where does the Bible teach 1) corporeality, and 2) eating either the flesh or blood is the same as eating the flesh and the blood.
1) John 6 for starters. 2) Inseparable by nature.
But I must insist that you acknowledge the Biblical truth that the Church and not scripture is the pillar and ground of truth and as such has the authority to help us refine our understanding of scripture. Your interpretation does not form reality.
For your perusal:
Did Jesus say eat my flesh and EAT my blood?
The Catholic Church has changed its view of the Lord’s Supper so many times it is ridiculous — perhaps they ought to simply return to Scripture.
You might want to look at church history to see how Catholic traditions have changed regarding how they handle the Lord’s Supper, or what they call “mass.”
As far as Scripture, YOU might need the pope and/or the Roman Catholic Church to tell you what it means, but I encourage you to read it for yourself and ask the Holy Spirit to teach you God’s revelation.
1 John 2:27 As for you, the anointing which you received from Him abides in you, and you have no need for anyone to teach you; but as His anointing teaches you about all things, and is true and is not a lie, and just as it has taught you, you abide in Him.
By the way, Jesus defined his life by the Scriptures and rebuked Peter for suggesting He not follow what was written.