Horse
In Ezekiel 26:11, this signifies the love of learning or intellectual things. (Arcana Coelestia 3727)
In Revelation 6:2, this signifies the love of understanding the Word. (Apocalypse Revealed 298)
In Zechariah 12:4, this signifies that the intellectual should be filled with falsities. (Arcana Coelestia 2383[2])
In general, 'a horse' signifies knowledge or understanding of the Word. In an opposite sense it signifies the understanding of the Word falsified by reasonings, and likewise destroyed from self-derived intelligence. 'A dead horse' signifies no understanding of truth from the Word.
Exodus 23:28-30
28
I will send the hornet before you, which will drive out the Hivite, the Canaanite, and the Hittite, from before you.
29
I will not drive them out from before you in one year, lest the land become desolate, and the animals of the field multiply against you.
30
Little by little I will drive them out from before you, until you have increased and inherit the land.
