Isaiah 55:8 highlights the vast difference between God’s thoughts and ours, illustrating His unsearchable understanding.

Isaiah 55:9 uses the heavens-earth comparison to emphasize God’s higher ways, reinforcing the depth of His understanding.

In Isaiah 45:22, God calls all the ends of the earth to turn to Him — reinforcing that the Creator of the ends (40:28) is the only Savior.

In Isaiah 59:1, God's arm is not too short to save — complementing the statement that He does not grow weary or faint.

Isaiah 42:5 describes God creating and spreading out the heavens and earth, expanding on the Creator title here.

Isaiah 45:12 has God saying 'I made the earth and created man', reinforcing the Creator of the ends of the earth.

Isaiah 37:16 calls God the maker of heaven and earth, affirming the same creative sovereignty as here.

Isaiah 66:9 reinforces God's faithfulness to complete what He starts — connecting to His unfailing strength here.

Romans 11:33 exclaims the unsearchable depth of God's wisdom and knowledge, directly expanding on this attribute.

Romans 11:33 again praises the inscrutability of God's ways, reinforcing the truth of His unsearchable understanding.

Psalm 139:6 marvels at God's knowledge beyond human grasp, directly echoing the unsearchable understanding here.

In Romans 16:26, Paul refers to 'the eternal God' — a direct NT echo of Isaiah's title for the Creator.

Psalm 147:5 explicitly declares God's understanding beyond measure, a near-identical parallel to this verse.

In 1 Corinthians 2:16, Paul echoes that no one knows the Lord's mind — the same incomprehensibility declared here — but adds that believers have the mind of Christ.

In Genesis 21:33, Abraham calls God 'the Eternal God' — the same title Isaiah uses here for the Creator who never grows weary.

In Mark 4:38, Jesus sleeps in the boat, showing human weariness that contrasts with God who never grows weary in Isaiah 40:28.

Revelation 4:11 declares God worthy because He created all things, directly echoing the creation theme of Isaiah 40:28.

In 2 Samuel 21:15, David becomes exhausted in battle — a direct contrast to the LORD who never grows tired or weary as declared here.

Psalm 145:3 uses the same word 'unsearchable' for God's greatness, echoing the unsearchable understanding here.

Job 11:7 asks rhetorically if anyone can fathom God's mysteries — directly echoing the claim here that His understanding is unfathomable.

Job 37:5 says God's voice and great things are beyond our understanding — similar to the unfathomable understanding declared here.

In Deuteronomy 33:27, the 'eternal God' is described as a refuge with everlasting arms — echoing Isaiah's theme of God's unfailing strength.

Acts 17:24 affirms God made the world and is Lord of heaven, paralleling Isaiah 40:28's depiction of God as Creator and everlasting.

Acts 7:50 quotes God as Creator of all things, echoing Isaiah 40:28's declaration that God is the Creator of the ends of the earth.

Proverbs 24:10 warns against fainting in adversity, contrasting with God who never faints or grows weary.

In Jeremiah 10:10, God is called 'the eternal King' and 'living God' — reinforcing Isaiah's portrayal of the everlasting God who never faints.

Habakkuk 1:12 addresses God as 'from everlasting', echoing the everlasting God here.

Malachi 3:6 declares 'I the Lord do not change', reflecting the unchanging everlasting nature of God here.

Job 38:18 challenges Job's comprehension of the earth's breadth — highlighting the same human limitation implied here in God's role as Creator.

Psalm 138:8 echoes God's commitment to fulfill His purpose for His people, matching the theme of His enduring power.

Job 5:9 declares God's wonders are unfathomable — paralleling the declaration here that His understanding is beyond our comprehension.

In 1 Samuel 2:10, 'the ends of the earth' are judged by the LORD — expanding the scope of God's sovereignty over all creation.

In 1 Timothy 1:17, God is praised as 'King eternal, immortal' — closely paralleling the everlasting, unwearied God of Isaiah 40:28.

1 Peter 4:19 entrusts souls to a faithful Creator, aligning with Isaiah 40:28's portrait of God as everlasting Creator.

Ecclesiastes 8:17 declares God's work cannot be fully found out, paralleling the unsearchable understanding here.

Psalm 36:6 describes God's righteousness and justice as vast and unfathomable — echoing the theme of God's incomprehensible greatness, though here it's about His understanding.

Psalm 121:2 also identifies God as maker of heaven and earth, reinforcing the creator theme in this verse.