Leopard
In Hosea 13:7, a leopard signifies ideas which appear to be coherent, but in reality are not. (Apocalypse Explained 781)
'A leopard,' as in Revelation 13:2, being a crafty and insidious animal, represents people who, "versed in reasoning adroitly", confirm faith separate from good works. 'A leopard' signifies the affection or lust of falsifying the truths of the Word. (Apocalypse Explained 780)
Isaiah 28:18
18
Your covenant with death shall be annulled, and your agreement with Sheol shall not stand. When the overflowing scourge passes through, then you will be trampled down by it.