I will go before you, and make the crooked places straight: I will break in pieces the gates of bronze, and cut asunder the bars of iron:
All Commentaries on Isaiah 45:2 Go To Isaiah 45
Ambrose of Milan
AD 397
I maintain in accord with the Scriptures that God can extend the low-lying regions and the open plains, as he has said, “I will go before you and make level the mountains.” The very force of water can also make its bed deeper by the violent movements of the waves and by the impact of the surf of that wild element that day by day stirs up the bottom of the sea, drawing forth sands from its very depths.