Isaiah 26:21 - Matthew Poole's English Annotations on the Holy Bible

Cometh out of his place; cometh down from heaven; which God in Scripture is frequently said to do, when he undertaketh any great and glorious work, either of delivering his people, or of destroying their enemies. The speech is borrowed from the manner of princes, who come out of their palaces either to sit in judgment, or to fight against their enemies, which is the case here. The inhabitants of the earth; all the enemies of God and of his people; for these are here opposed to God's people. Therefore take heed you be not found in the number of them. The earth also shall disclose her blood, and shall no more cover her slain; the innocent blood which hath been spilled upon the earth shall be brought to light, and shall be severely revenged upon the murderers. For the phrase, see on Genesis 4:10 Job 16:18 Ezekiel 24:7.