Who has heard such a thing? Who has seen such things? Shall a land be born in one day? Shall a nation be brought forth in one moment? For as soon as Zion was in labor she brought forth her children.
The prophet, having denounced God's judgments against a hypocritical nation, that made a jest of God's word and would not answer him when he called to them, here turns his speech to those that trembled at his word, to comfort and encourage them; they shall not be involved in the judgments that are coming upon their unbelieving nation.
Commenting on Isaiah 66:5-14
Who hath heard such a thing? who hath seen such things?.... Such numerous conversions, as after related; suggesting that they were wonderful and surprising, unheard of, what had never been seen in the world before, and which were amazing and astonishing to the church herself; see Isa 49:21, shall the earth be made to bring forth in one day?
earth--rather, to suit the parallelism, "is a country (put for the people in it) brought forth in one day?" [LOWTH]. In English Version it means, The earth brings forth its productions gradually, not in one day (Mar 4:28). at once--In this case, contrary to the usual growth of the nations by degrees, Israel starts into maturity at once.