Psalms 104:25-26

Leviathan : a twisting aquatic monster, possibly the crocodile of the Nile, and used symbolically of Assyria and Babylonia (by the twisting Euphrates River IBD).

Job 3:8

Leviathan : a twisting aquatic monster, possibly the crocodile of the Nile, and used symbolically of Assyria and Babylonia (by the twisting Euphrates River IBD).

Job 41:1-34

Leviathan : a twisting aquatic monster, possibly the crocodile of the Nile, and used symbolically of Assyria and Babylonia (by the twisting Euphrates River IBD).

Isaiah 27:1

Leviathan : a twisting aquatic monster, possibly the crocodile of the Nile, and used symbolically of Assyria and Babylonia (by the twisting Euphrates River IBD).

Revelation 20:2

Satan : a person, male (evil angelic),an angel that has rebelled against God