Romans 1:21

Because, having the knowledge of God, they did not give glory to God as God, and did not give praise, but their minds were full of foolish things, and their hearts, being without sense, were made dark.

Jeremiah 2:5

These are the words of the Lord: What evil have your fathers seen in me that they have gone far from me, and, walking after what is false, have become false?

Ephesians 4:17-18

This I say, then, and give witness in the Lord, that you are to go no longer in the way of the Gentiles whose minds are turned to that which has no profit,

2 Kings 17:15

And they went against his rules, and the agreement which he made with their fathers, and his laws which he gave them; they gave themselves up to things without sense or value, and became foolish like the nations round them, of whom the Lord had said, Do not as they do.

Romans 1:19

Because the knowledge of God may be seen in them, God having made it clear to them.

Revelation 14:7

Saying with a loud voice, Have fear of God and give him glory; because the hour of his judging is come; and give worship to him who made heaven and earth and the sea and the fountains of water.

Genesis 6:5

And the Lord saw that the sin of man was great on the earth, and that all the thoughts of his heart were evil.

Genesis 8:21

And when the sweet smell came up to the Lord, he said in his heart, I will not again put a curse on the earth because of man, for the thoughts of man's heart are evil from his earliest days; never again will I send destruction on all living things as I have done.

Deuteronomy 28:29

You will go feeling your way when the sun is high, like a blind man for whom all is dark, and nothing will go well for you: you will be crushed and made poor for ever, and you will have no saviour.

Psalm 81:12

So I gave them up to the desires of their hearts; that they might go after their evil purposes.

Ecclesiastes 7:29

This only have I seen, that God made men upright, but they have been searching out all sorts of inventions.

Isaiah 44:9-20

Those who make a pictured image are all of them as nothing, and the things of their desire will be of no profit to them: and their servants see not, and have no knowledge; so they will be put to shame.

Isaiah 60:2

For truly, the earth will be dark, and the peoples veiled in blackest night; but the Lord will be shining on you, and his glory will be seen among you.

Jeremiah 10:3-8

For that which is feared by the people is foolish: it is the work of the hands of the workman; for a tree is cut down by him out of the woods with his axe.

Jeremiah 10:14-15

Then every man becomes like a beast without knowledge; every gold-worker is put to shame by the image he has made: for his metal image is deceit, and there is no breath in them.

Jeremiah 16:19

O Lord, my strength and my strong tower, my safe place in the day of trouble, the nations will come to you from the ends of the earth, and say, The heritage of our fathers is nothing but deceit, even false things in which there is no profit.

Hosea 2:8

For she had no knowledge that it was I who gave her the grain and the wine and the oil, increasing her silver and gold which they gave to the Baal.

Habakkuk 1:15-16

He takes them all up with his hook, he takes them in his net, getting them together in his fishing-net: for which cause he is glad and full of joy.

Luke 17:15-18

And one of them, when he saw that he was clean, turning back, gave praise to God in a loud voice;

John 3:19

And this is the test by which men are judged: the light has come into the world and men have more love for the dark than for the light, because their acts are evil.

Romans 1:28

And because they had not the mind to keep God in their knowledge, God gave them up to an evil mind, to do those things which are not right;

Romans 11:10

Let their eyes be made dark so that they may not see, and let their back be bent down at all times.

Romans 15:9

And so that the Gentiles might give glory to God for his mercy; as it is said, For this reason I will give praise to you among the Gentiles, and I will make a song to your name.

2 Timothy 3:2

For men will be lovers of self, lovers of money, uplifted in pride, given to bitter words, going against the authority of their fathers, never giving praise, having no religion,

1 Peter 1:18

Being conscious that you have been made free from that foolish way of life which was your heritage from your fathers, not through a payment of things like silver or gold which come to destruction,

1 Peter 2:9

But you are a special people, a holy nation, priests and kings, a people given up completely to God, so that you may make clear the virtues of him who took you out of the dark into the light of heaven.

Revelation 15:4

What man is there who will not have fear before you, O Lord, and give glory to your name? because you only are holy; for all the nations will come and give worship before you; for your righteousness has been made clear.

Acts 26:18

To make their eyes open, turning them from the dark to the light, and from the power of Satan to God, so that they may have forgiveness of sins and a heritage among those who are made holy by faith 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 the knowledge of God may be seen in them, God having made it clear to them.
John 3:19
And this is the test by which men are judged: the light has come into the world and men have more love for the dark than for the light, because their acts are evil.

They glorified

Romans 15:9
And so that the Gentiles might give glory to God for his mercy; as it is said, For this reason I will give praise to you among the Gentiles, and I will make a song to your name.
Hosea 2:8
For she had no knowledge that it was I who gave her the grain and the wine and the oil, increasing her silver and gold which they gave to the Baal.
Habakkuk 1:15
He takes them all up with his hook, he takes them in his net, getting them together in his fishing-net: for which cause he is glad and full of joy.
Luke 17:15
And one of them, when he saw that he was clean, turning back, gave praise to God in a loud voice;
2 Timothy 3:2
For men will be lovers of self, lovers of money, uplifted in pride, given to bitter words, going against the authority of their fathers, never giving praise, having no religion,
Revelation 14:7
Saying with a loud voice, Have fear of God and give him glory; because the hour of his judging is come; and give worship to him who made heaven and earth and the sea and the fountains of water.
Revelation 15:4
What man is there who will not have fear before you, O Lord, and give glory to your name? because you only are holy; for all the nations will come and give worship before you; for your righteousness has been made clear.

But became

Genesis 6:5
And the Lord saw that the sin of man was great on the earth, and that all the thoughts of his heart were evil.
Genesis 8:21
And when the sweet smell came up to the Lord, he said in his heart, I will not again put a curse on the earth because of man, for the thoughts of man's heart are evil from his earliest days; never again will I send destruction on all living things as I have done.
2 Kings 17:15
And they went against his rules, and the agreement which he made with their fathers, and his laws which he gave them; they gave themselves up to things without sense or value, and became foolish like the nations round them, of whom the Lord had said, Do not as they do.
Psalm 81:12
So I gave them up to the desires of their hearts; that they might go after their evil purposes.
Ecclesiastes 7:29
This only have I seen, that God made men upright, but they have been searching out all sorts of inventions.
Isaiah 44:9
Those who make a pictured image are all of them as nothing, and the things of their desire will be of no profit to them: and their servants see not, and have no knowledge; so they will be put to shame.
Jeremiah 2:5
These are the words of the Lord: What evil have your fathers seen in me that they have gone far from me, and, walking after what is false, have become false?
Jeremiah 10:3
For that which is feared by the people is foolish: it is the work of the hands of the workman; for a tree is cut down by him out of the woods with his axe.
Jeremiah 16:19
O Lord, my strength and my strong tower, my safe place in the day of trouble, the nations will come to you from the ends of the earth, and say, The heritage of our fathers is nothing but deceit, even false things in which there is no profit.
Ephesians 4:17
This I say, then, and give witness in the Lord, that you are to go no longer in the way of the Gentiles whose minds are turned to that which has no profit,
1 Peter 1:18
Being conscious that you have been made free from that foolish way of life which was your heritage from your fathers, not through a payment of things like silver or gold which come to destruction,

Their foolish

Romans 11:10
Let their eyes be made dark so that they may not see, and let their back be bent down at all times.
Deuteronomy 28:29
You will go feeling your way when the sun is high, like a blind man for whom all is dark, and nothing will go well for you: you will be crushed and made poor for ever, and you will have no saviour.
Isaiah 60:2
For truly, the earth will be dark, and the peoples veiled in blackest night; but the Lord will be shining on you, and his glory will be seen among you.
Acts 26:18
To make their eyes open, turning them from the dark to the light, and from the power of Satan to God, so that they may have forgiveness of sins and a heritage among those who are made holy by faith in me.
1 Peter 2:9
But you are a special people, a holy nation, priests and kings, a people given up completely to God, so that you may make clear the virtues of him who took you out of the dark into the light of heaven.

General references

Psalm 94:11
The Lord has knowledge of the thoughts of man, for they are only a breath.
Isaiah 40:21
Have you no knowledge of it? has it not come to your ears? has not news of it been given to you from the first? has it not been clear to you from the time when the earth was placed on its base?
Jeremiah 33:18
And the priests and the Levites will never be without a man to come before me, offering burned offerings and perfumes and meal offerings and offerings of beasts at all times.
James 4:17
The man who has knowledge of how to do good and does not do it, to him it is sin.

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