maybe this.....
28Therefore they said to Him, “What shall we do, so that we may work the works of God?”
29Jesus answered and said to them, “This is the work of God, that you believe in Him whom He has sent.”
John 6:28-29 NASB
It is interesting to not how many times in that Bread of Life discourse (John 6) that Jesus stated believe as opposed to how many times He say eat me and drink my blood. Yet Catholiciism insists that the more numerous assertions of BELIEVE are negated by the few ‘eat my flesh and drink my blood’. And the context reveals why ... so RCs refuse the context.