Acts 17:30

Truly, then, God overlooking the times of ignorance, now He strictly commands all men everywhere to repent,

Luke 24:47

and that repentance and remission of sins should be proclaimed in His name among all nations, beginning at Jerusalem.

Acts 14:16

who in past generations allowed all nations to walk in their own ways.

Romans 3:25

whom God has set forth to be a propitiation through faith in His blood, to declare His righteousness through the passing by of the sins that had taken place before, in the forbearance of God;

Mark 6:12

And they went out and proclaimed that men should repent.

Titus 2:11-12

For the grace of God that brings salvation has appeared to all men,

Matthew 4:17

From that time Jesus began to preach and to say, Repent! For the kingdom of Heaven is at hand.

Acts 11:18

When they heard these things, they were silent and glorified God, saying, Then God has also granted repentance to life to the nations.

Acts 17:23

For as I passed by and saw the things you worship, I also found an altar with this inscription: TO THE UNKNOWN GOD. Not knowing then whom you worship, I make Him known to you.

Acts 20:21

testifying both to the Jews, and also to the Greeks, repentance toward God and faith toward our Lord Jesus Christ.

Romans 3:23

for all have sinned and come short of the glory of God,

2 Corinthians 7:10

For the grief according to God works repentance to salvation, not to be regretted, but the grief of the world works out death.

1 Peter 4:3

For the time of life which is past is enough for us to have worked out the will of the nations, having gone on in lasciviousness, lusts, excess of wine, parties, carousings, and abominable idolatries.

Psalm 50:21

These things you have done, and I have kept silence; you thought that I was like yourself, but I will rebuke you, and set in order before your eyes.

Matthew 3:2

and saying, Repent, for the kingdom of Heaven is at hand.

Mark 1:15

and saying, The time is fulfilled, and the kingdom of God draws near. Repent, and believe the gospel.

Luke 13:5

I tell you, No. But unless you repent, you will all likewise perish.

Luke 15:10

Likewise I say to you, there is joy before the angels of God over one sinner who repents.

Acts 3:19

Therefore repent and convert so that your sins may be blotted out, when the times of refreshing shall come from the presence of the Lord.

Acts 26:17-20

delivering you from the people and the nations, to whom I now send you

Romans 1:28

And even as they did not think fit to have God in their knowledge, God gave them over to a reprobate mind, to do the things not right,

Romans 2:4

Or do you despise the riches of His kindness, and the forbearance and long-suffering, not knowing that the kindness of God leads you to repentance?

Ephesians 4:17-32

This I say therefore, and testify in the Lord, that you should not walk from now on as other nations walk, in the vanity of their mind,

Ephesians 5:6-8

Let no man deceive you with vain words, for because of these things the wrath of God comes upon the children of disobedience.

1 Peter 1:14-15

as obedient children, not fashioning yourselves according to the former lusts in your ignorance,

Treasury of Scripture Knowledge

Summary

And the times of this ignorance God winked at; but now commandeth all men every where to repent:

Bible References

The times

Acts 14:16
who in past generations allowed all nations to walk in their own ways.
Psalm 50:21
These things you have done, and I have kept silence; you thought that I was like yourself, but I will rebuke you, and set in order before your eyes.
Romans 1:28
And even as they did not think fit to have God in their knowledge, God gave them over to a reprobate mind, to do the things not right,
Romans 3:23
for all have sinned and come short of the glory of God,

General references

Numbers 15:27
And if one soul sins through ignorance, then he shall bring a female goat of the first year for a sin offering.
Ecclesiastes 12:14
For God shall bring every work into judgment, with every secret thing, whether it is good, or whether evil.
Luke 5:32
I did not come to call the righteous to repentance, but sinners.