We are the church, even without a building.
Acts 7:48-50 (NKJV)
48 “However, the Most High does not dwell in temples made with hands, as the prophet says:
49 ‘Heaven is My throne,
And earth is My footstool.
What house will you build for Me? says the Lord,
Or what is the place of My rest?
50 Has My hand not made all these things?’