Passage
I will plant in the wilderness the cedar, the shittah tree, and the myrtle, and the oil tree; I will set in the desert the fir tree, and the pine, and the box tree together:
I will plant in the wilderness the cedar, the shittah tree, and the myrtle, and the oil tree; I will set in the desert the fir tree, and the pine, and the box tree together:
Isaiah 41:17 When the poor and needy seek water, and there is none, and their tongue faileth for thirst, I the LORD will hear them, I the God of Israel will not forsake them.
Isaiah 41:18 I will open rivers in high places, and fountains in the midst of the valleys: I will make the wilderness a pool of water, and the dry land springs of water.
Isaiah 41:19 I will plant in the wilderness the cedar, the shittah tree, and the myrtle, and the oil tree; I will set in the desert the fir tree, and the pine, and the box tree together:
Isaiah 41:20 That they may see, and know, and consider, and understand together, that the hand of the LORD hath done this, and the Holy One of Israel hath created it.
Isaiah 41:21 Produce your cause, saith the LORD; bring forth your strong reasons, saith the King of Jacob.
The verse centers on "plant", "wilderness", "cedar", "shittah", "tree", "myrtle", and "desert". It is saying that the verse draws attention to "plant" and "wilderness", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 18's "I will open rivers in high places..." into verse 20's "That they may see and know and...", so "plant" and "wilderness" belong inside that flow. 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 "plant" and "wilderness" with trust shaped by these words, not by a vague optimism outside the passage.