Isaiah 45:2
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:
Cross-reference
In Isaiah 45:13, God says He will make Cyrus's way straight — directly parallel to making rough places smooth and breaking gates for him.
Isaiah 13:4-17 describes Babylon's destruction; God's promise in 45:2 to level obstacles enables Cyrus to execute that judgment.
Isaiah 40:4 uses the same leveling imagery for preparing the Lord's way, echoing God's promise to Cyrus here.
Isaiah 14:4 prophesies Babylon's downfall — the same conquest where God shatters bronze doors (45:2) topples Babylon's pride.
Isaiah 43:14 announces God sending against Babylon — reinforcing the same divine action that breaks its gates in 45:2.
Isaiah 52:12 says 'the Lord will go before you' — echoing 45:2's promise of God leading, though for the exodus return not Cyrus.
Isaiah 42:16 promises to make rough places level for the blind, sharing the same metaphor of removing obstacles as in 45:2.
Psalm 107:16 uses nearly identical phrasing about breaking bronze doors and iron bars, praising God for deliverance.
Luke 3:5 quotes Isaiah 40:4's leveling imagery, which closely parallels the promise in 45:2 to prepare the way for Cyrus.
Nahum 3:13 also uses 'gates' and 'bars' imagery — fire devours bars, mirroring God shattering bronze doors and cutting iron bars here.
Daniel 5:28 prophesies Babylon given to Medes and Persians — the historical fulfillment of the conquest that God enables in 45:2.
Acts 12:10 recounts an iron gate opening by itself for Peter — a New Testament parallel of God supernaturally removing iron barriers as promised here.
Jeremiah 51:58 describes Babylon's high gates burned — a parallel destruction of its fortifications, complementing the shattered bronze doors.
Micah 2:13 describes the Breaker leading through gates — a thematic parallel to God going before and shattering doors for His people.