Isaiah 40:4

4 Every valley will be filled in. Every mountain and hill will be made level. The rough ground will be smoothed out. The rocky places will be made flat.

Isaiah 40:4 Meaning and Commentary

Isaiah 40:4

Every valley shall be exalted, and every mountain and hill
shall be made low
Which is not to be understood literally, but, as Kimchi says, parabolically and mystically: the meaning is, that in consequence of John's ministry, and our Lord's coming, such who were depressed and bowed down with the guilt of sin, and were low and humble in their own eyes, should be raised up and comforted; and that such who were elated with themselves, and their own righteousness, should be humbled; their pride and haughtiness should be brought down, and they treated with neglect and contempt, while great notice was taken of lowly minded ones; see ( Luke 14:11 ) and ( Luke 18:14 ) : and the crooked shall be straight and the rough places plain;
what before was dark and intricate in prophecy should now become clear; and such doctrines as were not so well understood should now become plain and easy.

Isaiah 40:4 In-Context

2 Speak tenderly to the people of Jerusalem. Announce to them that their hard service has been completed. Tell them that their sin has been paid for. Tell them I have punished them enough for all of their sins."

3 A messenger is calling out, "In the desert prepare the way for the Lord. Make a straight road through it for our God.

4 Every valley will be filled in. Every mountain and hill will be made level. The rough ground will be smoothed out. The rocky places will be made flat.

5 Then the glory of the LORD will appear. And everyone will see it. The LORD has spoken."

6 Another messenger says, "Cry out." And I said, "What should I cry?" "Cry out, 'All people are like grass. They don't last any longer than flowers in the field.