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.

General references

Bible References

When

Romans 1:19
This is so, because what can be known about God is plain to them; for God himself has made it plain.
John 3:19
The ground of his condemnation is this, that though the Light has come into the world, men preferred the darkness to the Light, because their actions were wicked.

They glorified

Romans 15:9
And that the Gentiles also may praise God for his mercy. As Scripture says--'Therefore will I make acknowledgment to thee among the Gentiles and sing in honor of thy Name.'
Luke 17:15
One of them, finding he was cured, came back, praising God loudly,
2 Timothy 3:2
Men will be selfish, mercenary, boastful, haughty, and blasphemous; disobedient to their parents, ungrateful, impure,
Revelation 14:7
and he cried in a loud voice-- 'Reverence God, and give him praise (for the hour of his Judgment has come) and worship him who made the heaven and the earth and the sea and all springs of water.'
Revelation 15:4
Who will not reverence and praise thy Name, O Lord? Thou alone art holy! All nations will come and worship before thee, for thy judgments have become manifest.'

But became

Ephesians 4:17
This, then, as one in union with the Lord, I say to you and urge upon you: Do not continue to live such purposeless lives as the Gentiles live,
1 Peter 1:18
For you know that it was not by perishable things, such as silver and gold, that you were Ransomed from the aimless way of living which was handed down to you from your ancestors,

Their foolish

Romans 11:10
May their eyes be darkened, so that they cannot see; and do thou always make their backs to bend.'
Acts 26:18
To open their eyes, and to turn them from darkness to light, and from the power of Satan to God; so that they may receive pardon for their sins, and a place among those who have become God's People, by faith in me.'
1 Peter 2:9
But you are 'a chosen race, a royal priesthood, a consecrated nation, God's own People,' entrusted with the proclamation of the goodness of him who called you out of Darkness into his wonderful Light.

General references

James 4:17
He, then, who knows what is right but fails to do it--that is sin in him.