Passage
Egypt shall be a desolation, and Edom shall be a desolate wilderness, for the violence against the children of Judah, because they have shed innocent blood in their land.
Egypt shall be a desolation, and Edom shall be a desolate wilderness, for the violence against the children of Judah, because they have shed innocent blood in their land.
Joel 3:17 So shall ye know that I am the LORD 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 new wine, and the hills shall flow with milk, and all the rivers of Judah shall flow with waters, and a fountain shall come forth of the house of the LORD, and shall water the valley of Shittim.
Joel 3:19 Egypt shall be a desolation, and Edom shall be a desolate wilderness, for the violence against the children of Judah, because they have shed innocent blood in their land.
Joel 3:20 But Judah shall dwell for ever, and Jerusalem from generation to generation.
Joel 3:21 For I will cleanse their blood that I have not cleansed: for the LORD dwelleth in Zion.
The verse centers on "egypt", "shall", "desolation", "edom", "desolate", "wilderness", and "violence". It is saying that the verse draws attention to "egypt" and "shall", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 18's "And it shall come to pass in..." into verse 20's "But Judah shall dwell for ever and...", so "egypt" and "shall" 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 "egypt" and "shall" with trust shaped by these words, not by a vague optimism outside the passage.