The voice said,
Cry.
And he said, What shall I cry?
All flesh is grass, and all its loveliness is as the flower of the field:
All Commentaries on Isaiah 40:6 Go To Isaiah 40
Augustine of Hippo
AD 430
Wonder not that you will be a sharer of [Christ’s] eternity. For he first became a sharer of your flesh, which is like grass. Will he who assumed from you what was lowly deny to you what is exalted with respect to you?… How great, then, is the hope of the grass since the Word has been made flesh? He who abides forever has not disdained to assume grass, that the grass might not despair of itself.