Job 7:12 New English Translation

¹²Am I the sea, or the creature of the deep,^[a]
that you must put^[b] me under guard?^[c]

Job 7:12 tn The word תַּנִּין (tannin) could be translated “whale” as well as the more mythological “dragon” or “monster of the deep” (see E. Dhorme, Job, 105). To the Hebrews this was part of God’s creation in Gen 1; in the pagan world it was a force to be reckoned with, and so the reference would be polemical. The sea is a symbol of the tumultuous elements of creation; in the sea were creatures that symbolized the powerful forces of chaos—Leviathan, Tannin, and Rahab. They required special attention.
Job 7:12 tn The imperfect verb here receives the classification of obligatory imperfect. Job wonders if he is such a threat to God that God must do this.
Job 7:12 tn The word מִשְׁמָר (mishmar) means “guard; barrier.” M. Dahood suggested “muzzle” based on Ugaritic, but that has proven to be untenable (“Mismar, ‘Muzzle,’ in Job 7:12, ” JBL 80 [1961]: 270-71).

New English Translation (NET)