I will do a new thing - Something that has not hitherto occurred, some unheard of and wonderful event, that shall far surpass all that he had formerly done (see the note at Isaiah 42:9).
Now it shall spring forth - (See the note at Isaiah 42:9). It shall spring up as the grass does from the earth; or it shall bud forth like the opening leaves and flowers - a beautiful figure, denoting the manner in which the events of Divine Providence come to pass.
I will even make a way in the wilderness - In this part of the verse, the prophet describes the anxious care which God would show in protecting his people, and providing for them in conducting them to their native land. See the expressions fully explained in the notes at Isaiah 41:17-19.
Other Barnes' Notes entries containing Isaiah 43:19:
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