Sparrow and swallow
In Psalm 84:3, 'a sparrow' signifies spiritual truth, and 'a swallow' signifies natural truth from which worship is performed.
(რეკომენდაციები: Apocalypse Explained 391)
Jeremiah 9:7
7
Therefore thus says Yahweh of Armies, Behold, I will melt them, and try them; for how [else] should I do, because of the daughter of my people?