In 1 Kings 8:32, Solomon asks God to condemn the wicked and justify the righteous; here v39 deepens that by emphasizing God's unique knowledge of hearts to give accordingly.

In 1 Kings 8:30, Solomon prays for God to hear and forgive — this verse continues the same prayer, specifying God knows hearts.

In 1 Kings 8:36, Solomon asks for forgiveness and teaching; v39 shifts to judgment according to each one's ways, known only to God.

Jeremiah 32:19 declares God's eyes observe all ways to repay accordingly, matching Solomon's plea that God, who knows hearts, gives according to each one's ways.

Revelation 22:12 promises Christ's return with reward for each according to works, echoing the OT principle that God gives according to ways based on heart knowledge.

Revelation 2:23 says Christ searches minds and hearts and repays according to deeds — echoing the OT truth.

Hebrews 4:13 declares nothing is hidden from God's sight — a direct parallel to God knowing all hearts.

Acts 1:24 directly quotes 'Lord, who know the hearts of all' in prayer — a clear NT citation of the OT sentiment.

John 21:17 has Peter confessing that Jesus knows all things, including his love — an explicit echo of divine heart-knowledge.

John 2:25 states Jesus knew what was in man — directly paralleling the statement that only God knows hearts.

Ezekiel 18:30 proclaims God's judgment on each according to their ways, reinforcing Solomon's request that God give as their ways deserve.

Jeremiah 17:10 directly states that God searches hearts to give according to ways, echoing Solomon's prayer that only God knows hearts and should thus judge accordingly.

Psalm 28:4 petitions God to repay according to deeds, mirroring Solomon's request that God give according to ways based on His heart knowledge.

Psalm 18:20-26 echoes the same principle: God repays each according to righteousness and purity, aligning with Solomon's request that God give according to ways, knowing hearts.

2 Chronicles 6:30 is the parallel account of Solomon's prayer, repeating nearly verbatim that God alone knows every human heart.

1 Chronicles 28:9 declares that the Lord searches all hearts and understands every thought, reinforcing Solomon's prayer that only God knows all hearts.

1 Samuel 16:7 teaches that God looks on the heart, not outward appearance, directly supporting v39's claim that only God knows hearts.

In Psalm 139:1, God has searched and known the psalmist — a direct parallel to God knowing all hearts here.

In Acts 15:8, God's knowledge of hearts is demonstrated by giving the Holy Spirit to Gentiles, showing He judges based on heart as Solomon prayed.

2 Corinthians 5:10 describes the judgment seat of Christ where each receives what is due, expanding the judgment based on heart knowledge Solomon mentioned.

In 1 Samuel 2:3, God is a God of knowledge who weighs actions — echoing that God alone knows hearts and renders judgment.

In 1 Thessalonians 2:4, Paul says God tests our hearts, echoing Solomon's prayer that God alone knows all hearts and renders accordingly.