"However, the Most High does not dwell in houses made by human hands; as the prophet says: ‘Heaven is My throne, and earth is the footstool of My feet; what kind of house will you build for Me?’ says the Lord, ‘Or what place is there for My repose?" (Acts 7:48-49)
"The God who made the world and all things in it, since He is Lord of heaven and earth, does not dwell in temples made with hands; nor is He served by human hands, as though He needed anything, since He Himself gives to all people life and breath and all things." (Acts 17:24-25)
God does not dwell in temples because they cannot contain Him. That is affirmed by both texts from Acts. See also 1 Kings 8:27.
Therefore, the Eucharist is just an ordinary peace of bread and priests do not have the power to transubstantiate the communion elements. Bread cannot be turned into God in the sense as is claimed of the Eucharist. If God does not dwell in man-made places, then the communion wafer cannot be turned into God.
We are also told in the New Testament that we need not think of God as being a material object:
"Being then the children of God, we ought not to think that the Divine Nature is like gold or silver or stone, an image formed by the art and thought of man." (Acts 17:29)
Is not the Eucharist wafer manna, which is material? The bread and wine used in the Mass is most certainly an image of Jesus Christ. God the Son ascended into heaven above, not into temples made with human hands:
"For Christ did not enter a holy place made with hands, a mere copy of the true one, but into heaven itself, now to appear in the presence of God for us." (Hebrews 9:24)