isaiah 26:18 We have been with child, we have been in pain, we have as it were brought forth wind; we have not wrought any deliverance in the earth; neither have the inhabitants of the world fallen. - Free Bible Online

      18. brought forth wind--MICHAELIS explains this of the disease empneumatosis. Rather, "wind" is a figure for that which proves an abortive effort. The "we" is in antithesis to "Thy," "my" (Isa 26:19), what we vainly attempt, God will accomplish.
      not wrought . . . deliverance in . . . earth--literally, "the land (Judea) is not made security," that is, is not become a place of security from our enemies.
      neither . . . world fallen--The "world" at large, is in antithesis to "the earth," that is, Judea. The world at enmity with the city of God has not been subdued. But MAURER explains "fallen," according to Arabic idiom, of the birth of a child, which is said to fall when being born; "inhabitants of the world (Israel, Isa 24:4; not the world in general) are not yet born"; that is, the country as yet lies desolate, and is not yet populated.

JFB.