30 Sheol is the underworld, land of the dead, according to the OT world view.
31 Elsewhere the noun חֹזֶה (khozeh) refers to a prophet who sees visions. In v. 18 the related term חָזוּת (khazut, “vision”) is used. The parallelism in both verses (note “treaty”) seems to demand a meaning “agreement” for both nouns. Perhaps חֹזֶה and חזוּת are used in a metonymic sense in vv. 15 and 18. Another option is to propose a homonymic root. See J. N. Oswalt, Isaiah (), 1:, and II חֹזֶה.
32 Heb “the overwhelming scourge, when it passes by” ( similar).
33 “Lie” and “deceitful word” would not be the terms used by the people. They would likely use the words “promise” and “reliable word,” but the prophet substitutes “lie” and “deceitful word” to emphasize that this treaty with death will really prove to be disappointing.

In other versions

Because you have said, “We have made a covenant with death,

and with Sheol we have an agreement,

when the overwhelming whip passes through

it will not come to us,

for we have made lies our refuge,

and in falsehood we have taken shelter”;

You boast, “We have entered into a covenant with death,

with the realm of the dead we have made an agreement.

When an overwhelming scourge sweeps by,

it cannot touch us,

for we have made a lie our refuge

and falsehood our hiding place.”

For you said, “We have made a covenant with Death,

and we have an agreement with Sheol;

when the overwhelming catastrophe passes through,

it will not touch us,

because we have made falsehood our refuge

and have hidden behind treachery.”

You boast, “We have struck a bargain to cheat death

and have made a deal to dodge the grave.

The coming destruction can never touch us,

for we have built a strong refuge made of lies and deception.”

Because you have said,

“We have made a covenant with death,

and we have made an agreement with Sheol.

The overwhelming flood, when it passes through, will not come to us,

for we have made lies our refuge,

and we have hidden ourselves in falsehood.”

Because ye have said, We have made a covenant with death,

And with hell are we at agreement;

When the overflowing scourge shall pass through, it shall not come unto us:

For we have made lies our refuge,

And under falsehood have we hid ourselves:

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