yeah, we know that....the Bible alone won't do it... You need the 7 Sacraments,tradition, authority, all of which Catholicism has.....check us out and rejoin.....if you are Baptized, you are already a Catholic.
Jesus answered them and said, "Truly, truly, I say to you, you seek Me, not because you saw signs, but because you ate of the loaves and were filled. Do not work for the food which perishes, but for the food which endures to eternal life, which the Son of Man will give to you, for on Him the Father, God, has set His seal."Therefore they said to Him, "What shall we do, so that we may work the works of God?"
Jesus answered and said to them, "This is the work of God, that you believe in Him whom He has sent."
Do you see any of the catholic sacraments or catholic extras in what Jesus told them?