Proverbs 25:3

As the heavens for height, and the earth for depth, so the hearts of kings are unsearchable.

1 Kings 4:29

God gave Solomon wisdom and understanding exceeding much, and very great understanding, even as the sand that is on the seashore.

Psalm 103:11

For as the heavens are high above the earth, so great is his loving kindness toward those who fear him.

Isaiah 7:11

"Ask a sign of Yahweh your God; ask it either in the depth, or in the height above."

Isaiah 55:9

"For as the heavens are higher than the earth, so are my ways higher than your ways, and my thoughts than your thoughts.

Romans 8:39

nor height, nor depth, nor any other created thing, will be able to separate us from the love of God, which is in Christ Jesus our Lord.

1 Peter 1:7

that the proof of your faith, which is more precious than gold that perishes even though it is tested by fire, may be found to result in praise, glory, and honor at the revelation of Jesus Christ --

Treasury of Scripture Knowledge

Summary

The heaven for height, and the earth for depth, and the heart of kings is unsearchable.

Is unsearchable

General references

Bible References

Heaven

Psalm 103:11
For as the heavens are high above the earth, so great is his loving kindness toward those who fear him.
Isaiah 7:11
"Ask a sign of Yahweh your God; ask it either in the depth, or in the height above."
Isaiah 55:9
"For as the heavens are higher than the earth, so are my ways higher than your ways, and my thoughts than your thoughts.
Romans 8:39
nor height, nor depth, nor any other created thing, will be able to separate us from the love of God, which is in Christ Jesus our Lord.

Is unsearchable

1 Kings 4:29
God gave Solomon wisdom and understanding exceeding much, and very great understanding, even as the sand that is on the seashore.
1 Peter 1:7
that the proof of your faith, which is more precious than gold that perishes even though it is tested by fire, may be found to result in praise, glory, and honor at the revelation of Jesus Christ --

General references

Isaiah 55:8
"For my thoughts are not your thoughts, neither are your ways my ways," says Yahweh.