Romans 1:21

Because that when they knew God, they glorified him not as God, neither were thankful, but became vain in their imaginations, and their foolish heart was darkened.

Jeremiah 2:5

Thus saith the LORD, What iniquity have your fathers found in me, that they have gone far from me, and have walked after vanity, and have become vain?

Ephesians 4:17-18

This I say therefore, and testify in the Lord, that ye henceforth walk not as other Gentiles walk, in the vanity of their mind,

2 Kings 17:15

And they rejected his statutes, and his covenant that he made with their fathers, and his testimonies which he testified against them; and they followed vanity, and became vain, and went after the heathen that were around them, concerning whom the LORD had charged them, that they should not do like them.

Romans 1:19

Because that which may be known of God, is manifest in them; for God hath shown it to them.

Revelation 14:7

Saying with a loud voice, Fear God, and give glory to him; for the hour of his judgment is come: and worship him that made heaven, and earth, and the sea, and the fountains of waters.

Genesis 6:5

And GOD saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually.

Genesis 8:21

And the LORD smelled a sweet savor; and the LORD said in his heart, I will not again curse the ground any more for man's sake; for the imagination of man's heart is evil from his youth: neither will I again smite any more every living animal as I have done.

Deuteronomy 28:29

And thou shalt grope at noon-day, as the blind gropeth in darkness, and thou shalt not prosper in thy ways: and thou shalt be only oppressed and spoiled evermore, and no man shall save thee.

Psalm 50:23

Whoever offereth praise glorifieth me: and to him that ordereth his deportment aright will I show the salvation of God.

Psalm 81:12

So I gave them up to their own hearts lust: and they walked in their own counsels.

Psalm 86:9

All nations whom thou hast made shall come and worship before thee, O Lord; and shall glorify thy name.

Ecclesiastes 7:29

Lo, this only have I found, that God hath made man upright; but they have sought out many inventions.

Isaiah 44:9-20

They that make a graven image are all of them vanity; and their delectable things shall not profit; and they are their own witnesses; they see not, nor know; that they may be ashamed.

Isaiah 60:2

For behold, the darkness shall cover the earth, and gross darkness the people: but the LORD will arise upon thee, and his glory will be seen upon thee.

Jeremiah 10:3-8

For the customs of the people are vain: for one cutteth a tree out of the forest, the work of the hands of the workman, with the ax.

Jeremiah 10:14-15

Every man is brutish in his knowledge: every founder is confounded by the graven image: for his molten image is falsehood, and there is no breath in them.

Jeremiah 16:19

O LORD, my strength and my fortress, and my refuge in the day of affliction, the Gentiles shall come to thee from the ends of the earth, and shall say, Surely our fathers have inherited lies, vanity, and things in which there is no profit.

Hosea 2:8

For she did not know that I gave her corn, and wine, and oil, and multiplied her silver and gold, which they prepared for Baal.

Habakkuk 1:15-16

They take up all of them with the angle, they catch them in their net, and gather them in their drag: therefore they rejoice and are glad.

Luke 17:15-18

And one of them, when he saw that he was healed, turned back, and with a loud voice glorified God,

John 3:19

And this is the condemnation, that light is come into the world, and men have loved darkness rather than light, because their deeds were evil.

Romans 1:28

And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;

Romans 11:10

Let their eyes be darkened, that they may not see, and bow down their back always.

Romans 15:9

And that the Gentiles might glorify God for his mercy; as it is written, For this cause I will confess to thee among the Gentiles, and sing to thy name.

2 Timothy 3:2

For men will be lovers of their own selves, covetous, boasters, proud, blasphemers, disobedient to parents, unthankful, unholy,

1 Peter 1:18

Forasmuch as ye know that ye were not redeemed with corruptible things, as silver and gold, from your vain course of life received by tradition from your fathers;

1 Peter 2:9

But ye are a chosen generation, a royal priesthood, a holy nation, a peculiar people; that ye should show forth the praises of him who hath called you out of darkness into his marvelous light:

Revelation 15:4

Who shall not fear thee, O Lord, and glorify thy name? for thou only art holy: for all nations shall come and worship before thee; for thy judgments are made manifest.

Acts 26:18

To open their eyes, and to turn them from darkness to light, and from the power of Satan to God, that they may receive forgiveness of sins, and inheritance among them who are sanctified by faith that is in me.

Treasury of Scripture Knowledge

Summary

Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.

Bible References

When

Romans 1:19
Because that which may be known of God, is manifest in them; for God hath shown it to them.
John 3:19
And this is the condemnation, that light is come into the world, and men have loved darkness rather than light, because their deeds were evil.

They glorified

Romans 15:9
And that the Gentiles might glorify God for his mercy; as it is written, For this cause I will confess to thee among the Gentiles, and sing to thy name.
Psalm 50:23
Whoever offereth praise glorifieth me: and to him that ordereth his deportment aright will I show the salvation of God.
Psalm 86:9
All nations whom thou hast made shall come and worship before thee, O Lord; and shall glorify thy name.
Hosea 2:8
For she did not know that I gave her corn, and wine, and oil, and multiplied her silver and gold, which they prepared for Baal.
Habakkuk 1:15
They take up all of them with the angle, they catch them in their net, and gather them in their drag: therefore they rejoice and are glad.
Luke 17:15
And one of them, when he saw that he was healed, turned back, and with a loud voice glorified God,
2 Timothy 3:2
For men will be lovers of their own selves, covetous, boasters, proud, blasphemers, disobedient to parents, unthankful, unholy,
Revelation 14:7
Saying with a loud voice, Fear God, and give glory to him; for the hour of his judgment is come: and worship him that made heaven, and earth, and the sea, and the fountains of waters.
Revelation 15:4
Who shall not fear thee, O Lord, and glorify thy name? for thou only art holy: for all nations shall come and worship before thee; for thy judgments are made manifest.

But became

Genesis 6:5
And GOD saw that the wickedness of man was great in the earth, and that every imagination of the thoughts of his heart was only evil continually.
Genesis 8:21
And the LORD smelled a sweet savor; and the LORD said in his heart, I will not again curse the ground any more for man's sake; for the imagination of man's heart is evil from his youth: neither will I again smite any more every living animal as I have done.
2 Kings 17:15
And they rejected his statutes, and his covenant that he made with their fathers, and his testimonies which he testified against them; and they followed vanity, and became vain, and went after the heathen that were around them, concerning whom the LORD had charged them, that they should not do like them.
Psalm 81:12
So I gave them up to their own hearts lust: and they walked in their own counsels.
Ecclesiastes 7:29
Lo, this only have I found, that God hath made man upright; but they have sought out many inventions.
Isaiah 44:9
They that make a graven image are all of them vanity; and their delectable things shall not profit; and they are their own witnesses; they see not, nor know; that they may be ashamed.
Jeremiah 2:5
Thus saith the LORD, What iniquity have your fathers found in me, that they have gone far from me, and have walked after vanity, and have become vain?
Jeremiah 10:3
For the customs of the people are vain: for one cutteth a tree out of the forest, the work of the hands of the workman, with the ax.
Jeremiah 16:19
O LORD, my strength and my fortress, and my refuge in the day of affliction, the Gentiles shall come to thee from the ends of the earth, and shall say, Surely our fathers have inherited lies, vanity, and things in which there is no profit.
Ephesians 4:17
This I say therefore, and testify in the Lord, that ye henceforth walk not as other Gentiles walk, in the vanity of their mind,
1 Peter 1:18
Forasmuch as ye know that ye were not redeemed with corruptible things, as silver and gold, from your vain course of life received by tradition from your fathers;

Their foolish

Romans 11:10
Let their eyes be darkened, that they may not see, and bow down their back always.
Deuteronomy 28:29
And thou shalt grope at noon-day, as the blind gropeth in darkness, and thou shalt not prosper in thy ways: and thou shalt be only oppressed and spoiled evermore, and no man shall save thee.
Isaiah 60:2
For behold, the darkness shall cover the earth, and gross darkness the people: but the LORD will arise upon thee, and his glory will be seen upon thee.
Acts 26:18
To open their eyes, and to turn them from darkness to light, and from the power of Satan to God, that they may receive forgiveness of sins, and inheritance among them who are sanctified by faith that is in me.
1 Peter 2:9
But ye are a chosen generation, a royal priesthood, a holy nation, a peculiar people; that ye should show forth the praises of him who hath called you out of darkness into his marvelous light:

General references

Psalm 94:11
The LORD knoweth the thoughts of man, that they are vanity.
Isaiah 40:21
Have ye not known? have ye not heard? hath it not been told you from the beginning? have ye not understood from the foundations of the earth?
Jeremiah 33:18
Neither shall the priests the Levites want a man before me to offer burnt-offerings, and to kindle meat-offerings, and to do sacrifice continually.
James 4:17
Therefore to him that knoweth to do good, and doeth it not, to him it is sin.