Passage
And Jehovah will roar from Zion, and utter his voice from Jerusalem; and the heavens and the earth shall shake: but Jehovah will be a refuge unto his people, and a stronghold to the children of Israel.
And Jehovah will roar from Zion, and utter his voice from Jerusalem; and the heavens and the earth shall shake: but Jehovah will be a refuge unto his people, and a stronghold to the children of Israel.
Joel 3:14 Multitudes, multitudes in the valley of decision! for the day of Jehovah is near in the valley of decision.
Joel 3:15 The sun and the moon are darkened, and the stars withdraw their shining.
Joel 3:16 And Jehovah will roar from Zion, and utter his voice from Jerusalem; and the heavens and the earth shall shake: but Jehovah will be a refuge unto his people, and a stronghold to the children of Israel.
Joel 3:17 So shall ye know that I am Jehovah your God, dwelling in Zion my holy mountain: then shall Jerusalem be holy, and there shall no strangers pass through her any more.
Joel 3:18 And it shall come to pass in that day, that the mountains shall drop down sweet wine, and the hills shall flow with milk, and all the brooks of Judah shall flow with waters; and a fountain shall come forth from the house of Jehovah, and shall water the valley of Shittim.
The verse centers on "jehovah", "roar", "zion", "utter", "voice", "jerusalem", "heavens", and "earth". It is saying that the verse draws attention to "jehovah" and "roar", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 15's "The sun and the moon are darkened..." into verse 17's "So shall ye know that I am...", so "jehovah" and "roar" belong inside that flow. In Joel context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "jehovah" and "roar" with trust shaped by these words, not by a vague optimism outside the passage.