Passage
Behold, I will do a new thing; now it shall spring forth; shall ye not know it? I will even make a way in the wilderness, and rivers in the desert.
Behold, I will do a new thing; now it shall spring forth; shall ye not know it? I will even make a way in the wilderness, and rivers in the desert.
Isaiah 43:17 Which bringeth forth the chariot and horse, the army and the power; they shall lie down together, they shall not rise: they are extinct, they are quenched as tow.
Isaiah 43:18 Remember ye not the former things, neither consider the things of old.
Isaiah 43:19 Behold, I will do a new thing; now it shall spring forth; shall ye not know it? I will even make a way in the wilderness, and rivers in the desert.
Isaiah 43:20 The beast of the field shall honour me, the dragons and the owls: because I give waters in the wilderness, and rivers in the desert, to give drink to my people, my chosen.
Isaiah 43:21 This people have I formed for myself; they shall shew forth my praise.
The verse centers on "behold", "shall", "spring", "forth", "even", "make", and "wilderness". It is saying that the verse draws attention to "behold" and "shall", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 18's "Remember ye not the former things neither..." into verse 20's "The beast of the field shall honour...", so "behold" and "shall" 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 "behold" and "shall" with trust shaped by these words, not by a vague optimism outside the passage.