Proverbs 1:12 New English Translation

¹²We will swallow them alive^[a] like Sheol,^[b]
those full of vigor^[c] like those going down to the Pit.

Proverbs 1:12 tn Heb “life.” The noun חַיִּים (khayyim, “life”) functions as an adverbial accusative of manner: “alive.” The noun is a plural of state, where the plural morpheme is used for the abstract concept (“life” not “lives”).
Proverbs 1:12 tn The noun שְׁאוֹל (sh^eʾol) can mean (1) “death,” cf. NCV; (2) “the grave,” cf. KJV, NIV, NLT (3) “Sheol” as the realm of departed spirits, cf. NAB “the nether world,” and (4) “extreme danger.” Here it is parallel to the noun בוֹר (vor, “the Pit”) so it is the grave or more likely “Sheol” (cf. ASV, NRSV). Elsewhere Sheol is personified as having an insatiable appetite and swallowing people alive as they descend to their death (e.g., Num 16:30, 33; Isa 5:14; Hab 2:5). The grave is often personified similarly in ancient Near Eastern literature, e.g., in Ugaritic mythological texts Mot (= “death”) is referred to as “the great swallower.”
Proverbs 1:12 tn Heb “and whole.” The vav (ו) is asseverative or appositional (“even”); it is omitted in the translation for the sake of style and smoothness. The substantival adjective תָּמִים (tamim, “whole; perfect; blameless”) is an adverbial accusative describing the condition and state of the object. Used in parallel to חַיִּים (khayyim, “alive”), it must mean “full of health” (BDB 1071 s.v. תָּמִים 2). These cutthroats want to murder people who are full of vigor.

New English Translation (NET)