The LORD will roar from Zion and raise His voice from Jerusalem; heaven and earth will tremble. But the LORD will be a refuge for His people, a stronghold for the people of Israel.
The Prophet explains here more clearly his object, or the end for which he had hitherto spoken of God’s judgment; for what we have heard served only to spread terror: but now the Prophet shows that his purpose was to console the faithful, and to give some relief to their troubles and sorrows. This is the reason why he introduces God as roaring from Zion and crying from Jerusalem.
What the psalmist had long before ordered to be said among the heathen (Psa 96:10) the prophet here will have in like manner to be published to all nations, That the Lord reigns, and that he comes, he comes to judge the earth, as he had long been judging in the earth.
Commenting on Joel 3:9-17
The Lord also shall roar out of Zion, and utter his voice from Jerusalem,.... Christ, the Lamb, shall now appear as the Lion of the tribe of Judah, and utter his voice in his providence and judgments on the behalf of his church and people, signified by Zion and Jerusalem; and therefore said to roar, and utter his voice from thence; he will be heard...