Where does Scripture say that the Church founded by Christ is invisible?
The Christian is a Holy Spirit filled soul...It is not the body, the flesh...When we die, the flesh falls to the ground...The soul goes to Heaven...That's the result of the Spiritual curcumcision made without hands...Lot's of people understand the physical circumcision but it seems few understand what the spiritual circumcision is...
Jesus makes very clear that by becoming Christians, we have inherited the Kingdom of God...
And where is the Kingdom of God??? It is NOT in Rome...
Luk 17:21 Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you.
The Kingdom of God is Spiritual...It's within you...It is NOT in a building or a religion...
The church resides in the soul...
1Co 3:16 Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you?
1Co 3:17 If any man defile the temple of God, him shall God destroy; for the temple of God is holy, which temple ye are.
2Co 6:16 And what agreement hath the temple of God with idols? for ye are the temple of the living God; as God hath said, I will dwell in them, and walk in them; and I will be their God, and they shall be my people.
Here are just a few that should point anyone toward the direction of the invisible church...