Passage
For, behold, Yahweh comes out of his place to punish the inhabitants of the earth for their iniquity. The earth also will disclose her blood, and will no longer cover her slain.
For, behold, Yahweh comes out of his place to punish the inhabitants of the earth for their iniquity. The earth also will disclose her blood, and will no longer cover her slain.
Isaiah 26:19 Your dead shall live. My dead bodies shall arise. Awake and sing, you who dwell in the dust; for your dew is like the dew of herbs, and the earth will cast out the departed spirits.
Isaiah 26:20 Come, my people, enter into your rooms, and shut your doors behind you. Hide yourself for a little moment, until the indignation is past.
Isaiah 26:21 For, behold, Yahweh comes out of his place to punish the inhabitants of the earth for their iniquity. The earth also will disclose her blood, and will no longer cover her slain.
The verse centers on "behold", "yahweh", "comes", "place", "punish", "inhabitants", "earth", and "iniquity". It is saying that the verse draws attention to "behold" and "yahweh", so its meaning should be read from those terms before moving to application.
The prior verse says "Come my people enter into your rooms...", giving immediate footing for "behold" and "yahweh". In Isaiah context, the local focus is the Holy One of Israel, judgment and restoration, the servant of the LORD, and Zion's hope.
A plain takeaway is to answer the verse's own emphasis on "behold" and "yahweh" with trust shaped by these words, not by a vague optimism outside the passage.