Thesis III The church in the proper sense of the word is invisible. 1. Scripture Proof Thus says the Lord (Luke 17:20–21): “The kingdom of God does not come with observation; nor will they say, ‘See here!’ or ‘See there!’ For indeed, the kingdom of God is within you.” (The Glossa ordinaria comments on the words, “The kingdom of God does not come with observation”: “It cannot be observed, because My kingdom is not temporal but spiritual and now begins by faith.”) Again, St. Peter writes (1 Peter 2:5):
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