Job

Job (Hebrew אִיּוֹב, Iyowb, "hated"), is a character in the Book of Job in the Hebrew Bible. In brief, the book begins with an introduction to Job's character — he is described as a rich, blessed man who fears God and lives righteously. Satan, however, challenges Job's integrity, and so God gives Job into Satan's hand, ending in tragedy for Job: the loss of his children, wealth, and physical soundness. The main portion of the text consists of the discourse of Job and his three friends concerning why Job was so punished, ending in God answering Job. Job is also a prophet in Islam.

Job had Seven sons and three daughters and

He possessed 7,000 sheep, 3,000 camels, 500 yoke of oxen, and 500 female donkeys, and very many servants, so that this man was the greatest of all the people of the east. (Job 1:3)

His sons took turns entertaining each other with feasts; each time they completed a cycle of feast days, Job sent to them and purified them, offering burn-offerings for each one in case any of them had cursed God in their hearts. He was "blameless and upright; he feared God and shunned evil. His good character is discussed in depth later in the book. (Job 1:1;4,5)

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also

Job: When the Righteous Suffer - John Piper (Part 1)

Leviathan

Leviathan (Hebrew: לִוְיָתָן, "Twisted; coiled") was a Biblical sea monster referred to in the Old Testament (Psalm 74:13-14; Job 41; Isaiah 27:1). The word leviathan has become synonymous with any large sea monster or creature. In the novel Moby-Dick it refers to great whales, and in Modern Hebrew, it means simply "whale".

Judaism
The word "Leviathan" appears five places in the Bible, and the Book of Job 41 is dedicated in describing Leviathan in detail:

Book of Job 3:8 "May those who curse days curse that day, those who are ready to rouse Leviathan "; NIV

Book of Job 41:1-34: "Canst thou draw out leviathan with an hook? or his tongue with a cord which thou lettest down?...He beholdeth all high things: he is a king over all the children of pride." KJV (quoted 1 and 34 only)

Psalms 74:14: "Thou brakest the heads of leviathan in pieces, and gavest him to be meat to the people inhabiting the wilderness." KJV

Psalms 104:24,25: "O LORD, how manifold are thy works! in wisdom hast thou made them all: the earth is full of thy riches. So is this great and wide sea, wherein are things creeping innumerable, both small and great beasts." KJV;

Isaiah 27:1: "In that day the Lord with his sore and great and strong sword shall punish leviathan the piercing serpent, even leviathan that crooked serpent; and he shall slay the dragon that is in the sea." KJV

The king over the children of pride is a reference to Satan (the Accuser). Just as he is referred to in the New Testament as a red dragon in Rev.12 having seven heads, so in Psalm 74:14: "Thou didst crush the heads of the Leviathan,..."

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