Revelation 22:11

Let him, that is unjust, be unjust still: and let him, that is filthy, be filthy still: and let him, that is righteous, be righteous still; and let him, that is holy, be holy still.

Luke 24:25

And He said unto them, O people void of understanding and slow of heart to believe all that the prophets have spoken.

John 7:17

If any man desire to do his will, he shall know concerning the doctrine, whether it be of God, or whether I speak of myself.

John 8:47

He, that is of God, receiveth the words of God; but ye therefore receive them not, because ye are not of God.

Revelation 9:20-21

And the rest of the men, who were not killed by these plagues, yet repented not of the works of their hands, so as not to worship demons, and idols of gold, and of silver, and of brass, and of stone, and of wood; which can neither see, nor hear, nor walk:

Mark 4:11

And he said unto them, To you it is granted to know the mystery of the kingdom of God; but unto them that are without all things are delivered in parables:

John 18:37

Pilate therefore said unto Him, Art thou then a king? Jesus answered, Thou sayest right, I am a king. For this end was I born, and for this came I into the world, even that I might bear witness to the truth. Every one that is of the truth, heareth my voice.

Romans 11:8-10

(according as it is written, God hath given them a spirit of slumber, that their eyes could not see and their ears could not hear,) even unto this day.

1 Corinthians 2:10-16

But God hath revealed them to us by his Spirit: for the Spirit searcheth all things, even the deep things of God.

1 Corinthians 6:11

And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the spirit of our God.

2 Corinthians 7:1

Having therefore, my beloved, these promises, let us purify ourselves from all defilement of flesh and spirit, perfecting holiness in the fear of God.

2 Thessalonians 2:10-12

and wonders, and with all iniquitous fraud, among those that shall perish; because they received not the love of the truth, by which they might be saved.

Titus 2:14

who gave Himself for us, that He might redeem us from all iniquity, and purify to Himself a peculiar people, zealous of good works.

Hebrews 12:10

For they indeed corrected us for a while, as seemed good to them; but He for our profit, that we may be partakers of his holiness.

1 Peter 1:7

That the proof of your faith, which is much more precious than of gold, (that perisheth, though tried by fire) may be found unto praise, and honor, and glory, when Jesus Christ shall be revealed:

1 Peter 1:22

Having therefore purified your souls by obedience to the truth, through the Spirit, to brotherly love unfeigned, love one another with a pure heart fervently:

1 John 5:20

But we know that the son of God is come, and hath given us understanding, that we may know Him that is true, and we are in Him that is true, and in his son Jesus Christ: He is the true God, and eternal life.

Revelation 3:18

I counsel thee to buy of me gold tried in the fire, that thou mayst be rich; and white raiment that thou mayst be clothed, and that the shame of thy nakedness may not appear: and anoint thine eyes with eye-salve, that thou mayst see.

Revelation 7:13-14

And one of the elders said unto me, Who are these that are clothed in white robes, and from whence did they come?

Revelation 16:11

And they blasphemed the God of heaven because of their pains and their sores; and they repented not of their works.

Revelation 19:8

And it was given to her, that she should be arrayed in fine linen clean and bright: for the fine linen is the righteousness of the saints.

Revelation 19:14

And the armies in heaven followed Him on white horses, clothed in fine linen white and clean.

Treasury of Scripture Knowledge

Summary

Many shall be purified, and made white, and tried; but the wicked shall do wickedly: and none of the wicked shall understand; but the wise shall understand.

Bible References

Shall be

1 Corinthians 6:11
And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the spirit of our God.
2 Corinthians 7:1
Having therefore, my beloved, these promises, let us purify ourselves from all defilement of flesh and spirit, perfecting holiness in the fear of God.
Titus 2:14
who gave Himself for us, that He might redeem us from all iniquity, and purify to Himself a peculiar people, zealous of good works.
Hebrews 12:10
For they indeed corrected us for a while, as seemed good to them; but He for our profit, that we may be partakers of his holiness.
1 Peter 1:7
That the proof of your faith, which is much more precious than of gold, (that perisheth, though tried by fire) may be found unto praise, and honor, and glory, when Jesus Christ shall be revealed:
Revelation 3:18
I counsel thee to buy of me gold tried in the fire, that thou mayst be rich; and white raiment that thou mayst be clothed, and that the shame of thy nakedness may not appear: and anoint thine eyes with eye-salve, that thou mayst see.
Revelation 7:13
And one of the elders said unto me, Who are these that are clothed in white robes, and from whence did they come?
Revelation 19:8
And it was given to her, that she should be arrayed in fine linen clean and bright: for the fine linen is the righteousness of the saints.

But the wicked

Romans 11:8
(according as it is written, God hath given them a spirit of slumber, that their eyes could not see and their ears could not hear,) even unto this day.
2 Thessalonians 2:10
and wonders, and with all iniquitous fraud, among those that shall perish; because they received not the love of the truth, by which they might be saved.
Revelation 9:20
And the rest of the men, who were not killed by these plagues, yet repented not of the works of their hands, so as not to worship demons, and idols of gold, and of silver, and of brass, and of stone, and of wood; which can neither see, nor hear, nor walk:
Revelation 16:11
And they blasphemed the God of heaven because of their pains and their sores; and they repented not of their works.
Revelation 22:11
Let him, that is unjust, be unjust still: and let him, that is filthy, be filthy still: and let him, that is righteous, be righteous still; and let him, that is holy, be holy still.

But the wise

Mark 4:11
And he said unto them, To you it is granted to know the mystery of the kingdom of God; but unto them that are without all things are delivered in parables:
Luke 24:25
And He said unto them, O people void of understanding and slow of heart to believe all that the prophets have spoken.
John 7:17
If any man desire to do his will, he shall know concerning the doctrine, whether it be of God, or whether I speak of myself.
John 8:47
He, that is of God, receiveth the words of God; but ye therefore receive them not, because ye are not of God.
John 18:37
Pilate therefore said unto Him, Art thou then a king? Jesus answered, Thou sayest right, I am a king. For this end was I born, and for this came I into the world, even that I might bear witness to the truth. Every one that is of the truth, heareth my voice.
1 Corinthians 2:10
But God hath revealed them to us by his Spirit: for the Spirit searcheth all things, even the deep things of God.
1 John 5:20
But we know that the son of God is come, and hath given us understanding, that we may know Him that is true, and we are in Him that is true, and in his son Jesus Christ: He is the true God, and eternal life.