6. The voice--the same divine herald as in
Isa 40:3.
he--one of those ministers or prophets
(see on
Isa 40:1)
whose duty it was, by direction of "the voice," to "comfort the Lord's
afflicted people with the promises of brighter days."
All flesh is grass--The connection is, "All human things, however
goodly, are transitory: God's promises alone steadfast"
(Isa 40:8, 15, 17, 23, 24);
this contrast was already suggested in
Isa 40:5,
"All flesh . . . the mouth of the Lord."
1Pe 1:24, 25
applies this passage distinctly to the gospel word of Messiah (compare
Joh 12:24;
Jas 1:10).
JFB.
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