Is this another Book of Mormon teaching?
As its not true, and its not NT.
Listen..,. "eathing the Flesh of Christ" is to BELIEVE in Jesus.
We are make partakers of SALVATION, "the eating", by Faith.
The Faith that God accepts.... is the Eating of the Blood and Body, of Jesus.
Communion is symbolic of BELIEVING, as both are taken inside you, with the Communion by mouth and BELIEVING is in the Heart.
Obedience to Christ, is not anything but works.
You can be an obedient disciple of Christ, and be this one after you die... "Depart from me.... i never KNEW YOU">
Jesus said one time..."If you keep my word(s) you are my disciple", but He didnt say, you are my Bride.
And that is because to become The Bride of Christ is based on THIS :
Jesus said.. "you must be BORN.. again".
So those "disciples" were doing Christ's works, but were not Of God, ....they were not BORN AGAIN.
Being Born again, is proof you have "eaten"... by Faith, and taking communion is symbolic of having BELIEVED and become God's own.