Bowels
In Isaiah 63:15, this signifies love or mercy. (Arcana Coelestia 1803[3])
In Jeremiah 31:20, this signifies the Lord's love itself or mercy itself, and compassion toward the whole human race. (Arcana Coelestia 1803[4])
Blood up to the bridles of the horses
In Revelation 14:20, this signifies violence inflicted upon the Word by falsifications of truth. (Apocalypse Revealed 653)