J. N. Darby

Isaiah 40 to 48 go together. Isaiah 40:1-8 is, however, introduction. Jerusalem has been sufficiently chastised, and the Lord speaks to her heart. But that is accompanied by this solemn truth - "All flesh is grass." The people, God's own people according to the flesh, come under this designation - "the people are grass." That withers, but this does not hinder their full blessing, only it must be known, "God's word abides for ever," and that is what secures the promises and their accomplishment. This is the introduction. The general statement is then taken up. He that bringeth good tidings to Zion and Jerusalem (for so I am disposed to take it*) is to announce, with energy, God Himself "to the cities of Judah." He "will come with strong hand," with His reward, "shall feed his flock like a shepherd." Then comes the contrast between Jehovah and idols. Princes shall be brought to nothing. He is the Creator of the heavens. Why does Israel distrust Him? The strongest shall faint - "those that wait on Jehovah shall renew their strength." This is the general thesis.