[imardmd1]

There is no Church (proper noun) on Earth; there are only "churches" (that is, local assemblies), regularly appointed gatherings to which God has summoned His regenerated citizens to teach and keep watchfully secure (tereoh) whatsoever He has commanded.

There is only one entity to which all and only regenerated humans belong, Headed by The Christ, of which its title is a proper noun, and that is Eκκλησίᾳ Πρωτοτόκων (translated "Church of Firstborn"), and it exists in the spiritual realm alone ἐν οὐρανοῖς (in the Heaven of God).

[imardmd1]

References for Post #7:

Matthew 28:18-20; Hebrews 12:23 Textus Receptus