Isaiah 40:5 - Joseph Benson’s Commentary on the Old and New Testaments

And the glory of the Lord shall be revealed It was revealed in some sort when God brought his people out of Babylon: for that was a glorious work of God, in which he displayed his power, and love, and faithfulness in fulfilling his promises. But his glory was much more eminently revealed when Christ, the Lord of glory, was manifested in the flesh, and gave much clearer and fuller discoveries of God's glorious wisdom, holiness, goodness, and other divine perfections, than ever before had been imparted to mankind, or to his church. And all flesh shall see it together All nations, Jews as well as Gentiles. For the mouth of the Lord hath spoken it Though it may seem incredible, yet God is able to accomplish it.