Job 17:16

“They shall go down to the bars of the pit, etc.] He himself, and his friends, and the hopes they would have him entertain; these should all go down together to the grave, and there lie barred and locked up; these hopes, so as never to rise anymore, and the bodies of himself, and his friends, till loosed by him who has the keys of hell and death: or “the bars shall go down to the grave”; the members of his body, as Jarchi, which are the bars of it, as some in Bar Tzemach; the strength and support of it, as particularly the bones, these shall go down to the grave, and there turn to rottenness and dust; and therefore, as if he should say, as he elsewhere does, “what is my strength, that I…”

“They--namely, my hopes shall be buried with me. bars-- (Isa 38:10). Rather, the wastes or solitudes of the pit (sheol, the unseen world). rest together--the rest of me and my hope is in, &c. Both expire together. The word "rest" implies that man's ceaseless hopes only rob him of rest. Next: Job Chapter 18”

“They shall go down - That is, my hopes shall go down. All the expectations that I have cherished of life and happiness, will descend there with me. We have a similar expression when we say, that a man “has buried his hopes in the grave,” when he loses an only son. To the bars of the pit - “Bars of Sheol” - שׁאול בד bad she'ôl. Vulgate, “Profoundest deep.” Septuagint, εἰς ᾅδην eis hadēn - to Hades. Sheol, or Hades, was supposed to be under the earth. Its entrance was by the grave as a gate that led to it. It was protected by bars - as prisons are - so that those who entered there could not escape; see the notes at Isaiah 14:9. It was a dark, gloomy dwelling, far away from light, and…”

“They - My hopes, of which he spake in the singular number, Job 17:15, which he here changes into the plural, as is usual in these poetical books. Bars - Into the innermost parts of the pit: my hopes are dying, and will be buried in my grave. We must shortly be in the dust, under the bars of the pit, held fast there, 'till the general resurrection. All good men, if they cannot agree now will there rest together. Let the foresight of this cool the heat of all contenders, and moderate the disputers of this world. Next: Job Chapter 18”

“17:16 the grave (literally the bars of Sheol): Sheol—the abode of the dead—was seen as having a barred gate, allowing no escape.”

“the bars of the pit: Job 18:13, Job 18:14, Job 33:18-28; Psa 88:4-8, Psa 143:7; Isa 38:17, Isa 38:18; Jon 2:6 rest: Job 3:17-19; Eze 37:11; Co2 1:9 Next: Job Chapter 18”