John 3:6

That which is born of the flesh is flesh, and that which is born of the Spirit is spirit.

Genesis 6:12

God looked on the earth, and behold, it was corrupt; for all flesh had corrupted their way upon the earth.

Job 14:4

Who can make the clean out of the unclean?
No one!

Job 25:4

“How then can a man be just with God?
Or how can he be clean who is born of woman?

Ezekiel 36:26-27

Moreover, I will give you a new heart and put a new spirit within you; and I will remove the heart of stone from your flesh and give you a heart of flesh.

Romans 8:4-9

so that the requirement of the Law might be fulfilled in us, who do not walk according to the flesh but according to the Spirit.

Galatians 5:16-21

But I say, walk by the Spirit, and you will not carry out the desire of the flesh.

Genesis 5:3

When Adam had lived one hundred and thirty years, he became the father of a son in his own likeness, according to his image, and named him Seth.

Genesis 6:5

Then the Lord saw that the wickedness of man was great on the earth, and that every intent of the thoughts of his heart was only evil continually.

Job 15:14-16

“What is man, that he should be pure,
Or he who is born of a woman, that he should be righteous?

Psalm 51:10

Create in me a clean heart, O God,
And renew a steadfast spirit within me.

Ezekiel 11:19-20

And I will give them one heart, and put a new spirit within them. And I will take the heart of stone out of their flesh and give them a heart of flesh,

John 1:13

who were born, not of blood nor of the will of the flesh nor of the will of man, but of God.

Romans 7:5

For while we were in the flesh, the sinful passions, which were aroused by the Law, were at work in the members of our body to bear fruit for death.

Romans 7:18

For I know that nothing good dwells in me, that is, in my flesh; for the willing is present in me, but the doing of the good is not.

Romans 7:25-1

Thanks be to God through Jesus Christ our Lord! So then, on the one hand I myself with my mind am serving the law of God, but on the other, with my flesh the law of sin.

Romans 8:13

for if you are living according to the flesh, you must die; but if by the Spirit you are putting to death the deeds of the body, you will live.

1 Corinthians 6:17

But the one who joins himself to the Lord is one spirit with Him.

1 Corinthians 15:47-50

The first man is from the earth, earthy; the second man is from heaven.

2 Corinthians 5:17

Therefore if anyone is in Christ, he is a new creature; the old things passed away; behold, new things have come.

Galatians 5:24

Now those who belong to Christ Jesus have crucified the flesh with its passions and desires.

Ephesians 2:3

Among them we too all formerly lived in the lusts of our flesh, indulging the desires of the flesh and of the mind, and were by nature children of wrath, even as the rest.

Colossians 2:11

and in Him you were also circumcised with a circumcision made without hands, in the removal of the body of the flesh by the circumcision of Christ;

1 John 3:9

No one who is born of God practices sin, because His seed abides in him; and he cannot sin, because he is born of God.

Treasury of Scripture Knowledge

Summary

That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.

General references

Bible References

Born of the flesh

Genesis 5:3
When Adam had lived one hundred and thirty years, he became the father of a son in his own likeness, according to his image, and named him Seth.
Genesis 6:5
Then the Lord saw that the wickedness of man was great on the earth, and that every intent of the thoughts of his heart was only evil continually.
Job 14:4
Who can make the clean out of the unclean?
No one!
Job 15:14
“What is man, that he should be pure,
Or he who is born of a woman, that he should be righteous?
Job 25:4
“How then can a man be just with God?
Or how can he be clean who is born of woman?
Psalm 51:10
Create in me a clean heart, O God,
And renew a steadfast spirit within me.
Romans 7:5
For while we were in the flesh, the sinful passions, which were aroused by the Law, were at work in the members of our body to bear fruit for death.
Romans 8:1
Therefore there is now no condemnation for those who are in Christ Jesus.
1 Corinthians 15:47
The first man is from the earth, earthy; the second man is from heaven.
2 Corinthians 5:17
Therefore if anyone is in Christ, he is a new creature; the old things passed away; behold, new things have come.
Galatians 5:16
But I say, walk by the Spirit, and you will not carry out the desire of the flesh.
Ephesians 2:3
Among them we too all formerly lived in the lusts of our flesh, indulging the desires of the flesh and of the mind, and were by nature children of wrath, even as the rest.
Colossians 2:11
and in Him you were also circumcised with a circumcision made without hands, in the removal of the body of the flesh by the circumcision of Christ;

General references

Mark 10:15
Truly I say to you, whoever does not receive the kingdom of God like a child will not enter it at all.”
1 Corinthians 6:17
But the one who joins himself to the Lord is one spirit with Him.