Romans 16:19

For your obedience has gone abroad to all men: I rejoice, therefore, on your account. But I desire you to be wise in respect to that which is good, and guileless in respect to that which is evil.

1 Corinthians 14:20

Brethren, be not children in understanding: yet, in malice, be childlike; but, in understanding, be full-grown men.

Romans 1:22

professing to be wise, they became foolish,

Matthew 23:16-26

Alas for you, blind guides! who say, Whoever shall swear by the temple, it is nothing; but whoever shall swear by the gold of the temple, becomes a debtor.

Luke 16:8

And the lord commended the unjust steward, because he acted prudently. For the children of this age are more prudent toward their generation than the children of light.

John 16:3

And these things they will do, because they know neither the Father nor me.

Romans 1:28

And as they refused to acknowledge God, God delivered them up to an undiscerning mind, to do detestable things;

Romans 3:11

there is none that understands; there is none that seeks after God;

1 Corinthians 1:20-21

Where is the wise man? Where is the scribe? Where is the disputer of this age? Has not God made foolish the wisdom of- this world?

Treasury of Scripture Knowledge

Summary

For my people is foolish, they have not known me; they are sottish children, and they have none understanding: they are wise to do evil, but to do good they have no knowledge.

General references

Bible References

They are wise

Luke 16:8
And the lord commended the unjust steward, because he acted prudently. For the children of this age are more prudent toward their generation than the children of light.
Romans 16:19
For your obedience has gone abroad to all men: I rejoice, therefore, on your account. But I desire you to be wise in respect to that which is good, and guileless in respect to that which is evil.
1 Corinthians 14:20
Brethren, be not children in understanding: yet, in malice, be childlike; but, in understanding, be full-grown men.

General references

Luke 16:4
I am resolved on what I shall do, that, when I am put out of the stewardship, I may be received into their houses.