“... First Enoch 60 presumes such a taming of Leviathan and Behemoth as well as the sea, and these figures are completely within the control of the creator deity. They are separated from one another such that Leviathan dwells in the water and Behemoth on the land. They are preserved for the purpose of feasting upon those being punished in the “great Day of the Lord”: And on that day two monsters (ʿanābərt) will be separated from one another, a female monster named Leviathan, to dwell in the abyss of the ocean over the fountains of the waters. But the male is named Behemoth, who covers with his belly an empty wilderness named Duidain. . . . And I besought the other angel that he should show me the might of those monsters, how they were separated in one day and cast, the one into the abysses of the sea, and the other into the dry land of the wilderness. . . . And the angel of peace who was with me said to me: “These two monsters are to be ready for the great Day of the Lord to be feasted, so that the punishment of the Lord of spirits may fall upon them and not come forth in vain”. (1 Enoch 60:7–9, 24) First Enoch 60 explicitly describes the “Head of Days” enthroned and fully controlling the sea, Leviathan, and Behemoth, along with the moon, stars, and various weather phenomena. [...] This text is distinct in portraying Leviathan and Behemoth feasting on people in the eschaton, rather than people feasting on Leviathan and Behemoth as in the other examples of the combat-banquet tradition. However, the notion that the “Head of Days” has preserved Leviathan and Behemoth for a purpose and that he will utilize them in some way is consistent with 2 Baruch 29:4, 4 Ezra 6, b. Baba Batra ...”

“... B. Baba Batra 74b–75a describes the creation, preservation, and slaying of two Leviathans and two Behemoths: “And Elohim created the great sea-dragons” (Gen 1:21). . . . R. Johanan said: This is Leviathan the fleeing serpent, Leviathan the twisting serpent, as it is written: “On that day the Lord will punish with his sharp, [great, and strong] sword [Leviathan the fleeing serpent, Leviathan the twisting serpent]” (Isa 27:1). Rab Judah said that Rab said: All that the Holy One, blessed be he, created in his world, male and female he created them. So too, Leviathan the fleeing serpent and Leviathan the tortuous serpent, male and female he created them; and if they had coupled with one another they would have destroyed the entire world. What did the Holy One, blessed be he, do? He castrated the male and killed the female, salting (preserving) her for the righteous for the coming future; as it is written: “And he will slay the dragon that is in the sea” (Isa 27:1). So too, Behemoth on a thousand hills, male and female he created them, and if they had coupled with one another they would have destroyed the entire world. What did the Holy One, blessed be he, do? He castrated the male and cooled the female, and he preserved her for the righteous for the coming future; as it is written: “Look, his strength is in his loins” (Job 40:16); this is the male; “and his strength is in the muscles of his belly” (Job 40:16); this is the female. . . . (b. Baba Batra 74b) The plural “great sea-dragons” of Gen 1:21 are identified as male and female Leviathans, reading the parallel lines in Isa 27:1 as referring to separate creatures rather than two synonymous descriptions of one Leviathan. R. Johanan reasons that the “Holy One” created a male and female Behemoth as well and that he castrated the males and preserved the females “for the righteous in the world to come.” ...”