Isaiah 45:2
in Isaiah 45“I will go before you and level the mountains; I will break down the gates of bronze and cut through the bars of iron.
BSB
The same verse in ASV and KJV ▾
ASV
I will go before thee, and make the rough places smooth; I will break in pieces the doors of brass, and cut in sunder the bars of iron;
KJV
I will go before thee, and make the crooked places straight: I will break in pieces the gates of brass, and cut in sunder the bars of iron:
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This verse in Isaiah 45
Commentary
13 notes on this verse(Chapter 45, Verses 1-7) Thus says the Lord to Cyrus, his anointed one, whom he has taken by the right hand to subdue nations before him and strip the loins of kings, to force gateways before him that their gates be closed no more: I will go before you, and level the mountains; I will break in pieces the doors of bronze and cut through the bars of iron.
This site's exposition
to open the doors before him
on Isaiah 45:1-2
The LORD calls Cyrus, a Persian king named long before his birth, “His anointed”, the Hebrew word behind Messiah. The phrase “to disarm kings” pictures royal power unbuckled. Verse 2 promises, “I will go before you and level the mountains; I will break down the gates of bronze.”
This site's exposition
level the mountains
Clarke defends the mountains of the Berean text. The Hebrew word here is hard to account for, and the Septuagint read it as mountains, a form two manuscripts nearly share. Clarke hears the ease God gave Cyrus against the nations, and he sets beside it a like image from Ovid.
The record, by era
The Church Fathers5 voices
(Chapter 45, Verses 1-2) Thus says the Lord to Cyrus, his anointed one, whom he has taken by the right hand to subdue nations before him and strip the loins of kings, to force gateways before him that their gates be closed no more: I will go before you, and level the mountains; I will break in pieces the doors of bronze and cut through the bars of iron. I know that in this chapter not only many Latin but also Greek people greatly err, thinking that it is written: Thus says the Lord to my Christ, the Lord; so that it is understood, according to what we read elsewhere: The Lord rains from the Lord (Gen. II). And: The Lord said to my Lord (Ps. CIX, 1). For it is not κυρίῳ, which means Lord, but it is said to Cyrus, who is called Chores in Hebrew, the king of the Persians, who overcame Babylon and the Chaldeans. And with the Medes joined together, the charioteer of the chariot, that is, of the camel and the donkey, is read above. This one is called Christ, that is, the anointed of the Lord, which was a sign among the Hebrews of royal power, just as with us the emperor is given a diadem and purple robe: so among the Hebrews those who were to reign were anointed with oil. Hence Saul is also called the anointed of the Lord (1 Samuel 24). And in the Psalms we read: 'Do not touch my anointed ones, and do no harm to my prophets' (Psalm 105:15). He grasped and held the right hand of this man, so that no one could resist his strength. Let us read the history of Cyrus the Great, consisting of eight books by Xenophon, and we will see the prophecy of Isaiah fulfilled. What city did not yield to him? What king did not submit to him? What walls, before impregnable, were not brought down by his siege?
Therefore, let us fear nothing so much as sin and transgression. Let us not fear punishment, and then we shall escape punishment. Even as the Three Children were not afraid of the furnace, and so escaped from the furnace. Such indeed it becomes the servants of God to be. For if those who were brought up under the Old dispensation, when death was not yet slain, nor his "brazen gates broken down," nor his "iron bars smitten in sunder;" so nobly encountered their end, how destitute of all defence or excuse shall we be, if, after having had the benefit of such great grace, we attain not even to the same measure of virtue as they did, now when death is only a name, devoid of reality. For death is nothing more than a sleep, a journey, a migration, a rest, a tranquil haven; an escape from trouble, and a freedom from the cares of this present life!
For taking into his hands the book of Isaiah he found as he read the section which contained the prophecy concerning himself; since Isaiah says in that section: Thus saith the Lord to his Anointed, to Cyrus, whose right hand I have holden to subdue …
Nevertheless, I assert according to the Scriptures that He was able to spread out lowly places and open fields, just as He Himself says: 'I will walk before you and make mountains plain.' The force of the water itself could also make deeper things, which had settled, more turbulent: with such a movement of waves and such a surge of a more agitated element, which daily twists the depths of the sea and turns the sands out of the deep.
By all that is about to be said, he has taught that he has invested Cyrus as king, he has given him the necessary sovereignty to direct his empire with good will and so that the disposition of difficult matters is mitigated and facilitated. This …
5 more voices on this verse
The Medieval Church1 voice
Or because of strength, and as to this he says: I will go before you, preparing the place of your victory, by sending terror of you among your adversaries, the great ones, powerful above others, like the Babylonians; the gates of brass, the most powerful …
The Puritans and the Awakening1 voice
I will go before thee, and make the crooked places straight,.... Or, "level the hilly places" (c); as pioneers do.
The Nineteenth Century3 voices
The crooked places “The mountains” - For הדורים hodurim, crooked places, a word not easily accounted for in this place, the Septuagint read הררים hararim, τα ορη, the mountains. Two MSS. have הדרים hadarim, without the ו vau, which is hardly distinguishable from the reading of the Septuagint. The Divine protection that attended Cyrus, and rendered his expedition against Babylon easy and prosperous is finely expressed by God’s going before him, and making the mountains level. The image is highly poetical: - At vos, qua veniet, tumidi subsidite montes, Et faciles curvis vallibus este viae. Ovid, Amor.
A commentator
Jamieson, Fausset & Brown1802–1910
Commentary Critical and Explanatory on the Whole Bible (1871)
proposed
crooked . . . straight-- (Isa 40:4), rather, "maketh mountains plain" [LOWTH], that is, clear out of thy way all opposing persons and things. The Keri reads as in Isa 45:13, "make straight" (Margin). gates of brass-- (Ps 107:16).
quarantine:debris (2026-07-29) — starts-lowercase
A commentator
Albert Barnes1798–1870
Notes, Explanatory and Practical, on the Old and New Testaments (1832-1869)
proposed
I will go before thee - To prepare the way for conquest, a proof that it is by the providence of God that the proud conquerors of the earth are enabled to triumph. The idea is, I will take away everything that would retard or oppose your victorious march. And make the crooked paths straight - (See the note at Isa 40:4). The Chaldee renders this, ‘My word shall go before thee, and I will prostrate the walls.’ Lowth renders it, ‘Make the mountains plain.’ Noyes, ‘Make the high places plain.’ The Septuagint renders it, Ὄρη ὁμαλιῶ Orē homaliō - ‘Level mountains.’ Vulgate, Gloriosos terroe humiliabo - ‘The high places of the earth I will bring down.’ The word הדוּרים hădûrı̂ym is from הדר hâdar, to be large, ample, swollen, tumid; and probably means the swollen tumid places, that is, the hills or elevated places; and the idea is, that God would make them level, or would remove all obstructions out of his way. I will break in pieces the gates of brass - Ancient cities were surrounded by walls, and secured by strong gates, which were not unfrequently made of brass. To Babylon there were one hundred gates, twenty-five on each side of the city, which, with their posts, were made of brass. ‘In the circumference of the walls,’ says Herodotus (i. 179), ‘at different distances, were a hundred massy gates of brass, whose hinges and frames were of the same metal.’ It was to this, doubtless, that the passage before us refers. The bars of iron - With which the gates of the city were fastened. ‘One method of securing the gates of fortified places among the ancients, was to cover them with thick plates of iron - a custom which is still used in the East, and seems to be of great antiquity. We learn from Pitts, that Algiers has five gates, and some of these have two, some three other gates within them, and some of them plated all over with iron. […]
The words behind it
11 Hebrew wordsEvery Hebrew word of this verse in the order it stands, with what it means and the door to its own study. The last column counts the times a word stands in the whole Bible: the rarer the word, the more the places it appears belong together.
| Hebrew | Sound | Meaning | Word study | In the Bible |
|---|---|---|---|---|
| אֲנִי֙ | ʾani | I | H589 → | 874 times |
| לְפָנֶ֣יךָ | lefaneikha | <to> before you | H6440 → | 2123 times |
| אֵלֵ֔ךְ | ʾelekh | I will go | H1980 → | 1546 times |
| וַהֲדוּרִ֖ים | vahadurim | and [the] mountainous land<s> | H1921 → | |
| אֲיַשֵּׁ֑ר | ʾoshir | I will make smooth | H3474 → | 25 times |
| דַּלְת֤וֹת | daltot | doors of | H1817 → | 88 times |
| נְחוּשָׁה֙ | nechushah | bronze | H5154 → | |
| אֲשַׁבֵּ֔ר | ʾashaber | I will break | H7665 → | 147 times |
| וּבְרִיחֵ֥י | uverichei | and bars of | H1280 → | |
| בַרְזֶ֖ל | varzel | iron | H1270 → | 76 times |
| אֲגַדֵּֽעַ׃ | ʾagadea' | I will cut through | H1438 → | 22 times |
אֲנִי֙I
ʾaniH589 →874 times
לְפָנֶ֣יךָ<to> before you
lefaneikhaH6440 →2123 times
אֵלֵ֔ךְI will go
ʾelekhH1980 →1546 times
וַהֲדוּרִ֖יםand [the] mountainous land<s>
vahadurimH1921 →
אֲיַשֵּׁ֑רI will make smooth
ʾoshirH3474 →25 times
דַּלְת֤וֹתdoors of
daltotH1817 →88 times
נְחוּשָׁה֙bronze
nechushahH5154 →
אֲשַׁבֵּ֔רI will break
ʾashaberH7665 →147 times
וּבְרִיחֵ֥יand bars of
uvericheiH1280 →
בַרְזֶ֖לiron
varzelH1270 →76 times
אֲגַדֵּֽעַ׃I will cut through
ʾagadea'H1438 →22 times
A shaded row is a word that stands 400 times or fewer in the Bible.
The walk
8 stopsEach card is a verse this one points to, and under it the verses that one points to in turn. Where several paths arrive at the same place, that place is listed first: the text keeps returning to it.
Through
Isaiah 40:4Every valley shall be lifted up, and every mountain and hill made low; the uneven ground will become smooth, and the rugged land a plain.
it leads to
- Luke 3:5
Every valley shall be filled in, and every mountain and hill made low. The crooked ways shall be made straight, and the rough ways smooth.
Reached by 2 separate paths from here.
- Ezekiel 21:26
This is what the Lord GOD says: ‘Remove the turban, and take off the crown. Things will not remain as they are: Exalt the lowly and bring low the exalted.
- Luke 3:5
Through
Luke 3:5Every valley shall be filled in, and every mountain and hill made low. The crooked ways shall be made straight, and the rough ways smooth.
it leads to
- Isaiah 40:4
Every valley shall be lifted up, and every mountain and hill made low; the uneven ground will become smooth, and the rugged land a plain.
Reached by 2 separate paths from here.
- Ezekiel 17:24
Then all the trees of the field will know that I am the LORD. I bring the tall tree down and make the low tree tall. I dry up the green tree and make…
Reached by 2 separate paths from here.
- Isaiah 42:16
I will lead the blind by a way they did not know; I will guide them on unfamiliar paths. I will turn darkness into light before them and rough places into level ground. These…
- Isaiah 40:4
Through
Isaiah 42:16I will lead the blind by a way they did not know; I will guide them on unfamiliar paths. I will turn darkness into light before them and rough places into level ground. These…
it leads to
- Isaiah 30:21
And whether you turn to the right or to the left, your ears will hear this command behind you: “This is the way. Walk in it.”
- Isaiah 60:19–20
No longer will the sun be your light by day, nor the brightness of the moon shine on your night; for the LORD will be your everlasting light, and your God will be your…
- Isaiah 35:8
And there will be a highway called the Way of Holiness. The unclean will not travel it—only those who walk in the Way—and fools will not stray onto it.
- Isaiah 30:21
Where this verse is studied
About Isaiah

This page draws on 12 works. Open the list of works
This page draws on Adam Clarke, Commentary on the Bible; Albert Barnes, Notes on the Book of Isaiah; Albert Barnes, Notes, Explanatory and Practical, on the Old and New Testaments (1832-1869); Ambrose of Milan, The Six Days of Creation, 3.15; Cosmas Indicopleustes, The Christian Topography, Book 8; Franz Delitzsch, Biblical Commentary on the Prophecies of Isaiah; Jamieson, Fausset & Brown, Commentary Critical and Explanatory on the Whole Bible; Jerome, Commentary on Isaiah; John Chrysostom, HOMILIES CONCERNING THE STATUES 7:1; John Gill, Exposition of the Old Testament (1748-1763); Theodoret of Cyrus, COMMENTARY ON ISAIAH 14:45.2 and Thomas Aquinas, Commentary on Isaiah.
