Proverbs 20:27

The Lord keeps watch over the spirit of man, searching all the deepest parts of the body.

1 Corinthians 2:11

For who has knowledge of the things of a man but the spirit of the man which is in him? in the same way, no one has knowledge of the things of God but the Spirit of God.

Genesis 2:7

And the Lord God made man from the dust of the earth, breathing into him the breath of life: and man became a living soul.

Job 32:8

But truly it is the spirit in man, even the breath of the Ruler of all, which gives them knowledge.

Proverbs 20:30

By the wounds of the rod evil is taken away, and blows make clean the deepest parts of the body.

Romans 2:15

Because the work of the law is seen in their hearts, their sense of right and wrong giving witness to it, while their minds are at one time judging them and at another giving them approval;

2 Corinthians 4:2-6

And we have given up the secret things of shame, not walking in false ways, and not making use of the word of God with deceit; but by the revelation of what is true, as before God, we have the approval of every man's sense of right and wrong.

Hebrews 4:12-13

For the word of God is living and full of power, and is sharper than any two-edged sword, cutting through and making a division even of the soul and the spirit, the bones and the muscles, and quick to see the thoughts and purposes of the heart.

1 John 3:19-21

In this way we may be certain that we are true, and may give our heart comfort before him,

Treasury of Scripture Knowledge

Summary

The spirit of man is the candle of the LORD, searching all the inward parts of the belly.

Bible References

Spirit

Genesis 2:7
And the Lord God made man from the dust of the earth, breathing into him the breath of life: and man became a living soul.
Job 32:8
But truly it is the spirit in man, even the breath of the Ruler of all, which gives them knowledge.
Romans 2:15
Because the work of the law is seen in their hearts, their sense of right and wrong giving witness to it, while their minds are at one time judging them and at another giving them approval;
1 Corinthians 2:11
For who has knowledge of the things of a man but the spirit of the man which is in him? in the same way, no one has knowledge of the things of God but the Spirit of God.
2 Corinthians 4:2
And we have given up the secret things of shame, not walking in false ways, and not making use of the word of God with deceit; but by the revelation of what is true, as before God, we have the approval of every man's sense of right and wrong.
1 John 3:19
In this way we may be certain that we are true, and may give our heart comfort before him,

Searching

Proverbs 20:30
By the wounds of the rod evil is taken away, and blows make clean the deepest parts of the body.
Hebrews 4:12
For the word of God is living and full of power, and is sharper than any two-edged sword, cutting through and making a division even of the soul and the spirit, the bones and the muscles, and quick to see the thoughts and purposes of the heart.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain