Acts 17:30

For the times of this ignorance God overlooked, but he now commands all men everywhere to repent

Luke 24:47

and that repentance and remission of sins should be preached in his name among all nations, beginning from Jerusalem.

Acts 14:16

who in generations past suffered all the Gentiles to walk in their own ways.

Romans 3:25

whom God purposed for reconciliation through faith in his blood for the manifestation of his righteousness, for the remission of sins that are past, by the patience of God,

Mark 6:12

And they went out and preached 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 the heavens is at hand.

Acts 11:18

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

Acts 17:23

For as I passed by and beheld your sanctuaries, I found an altar with this inscription, TO THE UNKNOWN GOD. Whom therefore ye ignorantly worship, him I declare unto you.

Acts 20:21

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

Romans 3:23

for all have sinned and are made destitute of the glory of God,

2 Corinthians 7:10

For godly sorrow works repentance to salvation, of which there is no need to repented; but the sorrow of the world works death.

1 Peter 4:3

For it should suffice us that during the time past of our life we had done the will of the Gentiles, when we conversed in lasciviousness, lusts, drunkenness, gluttony, orgies, and abominable idolatries.

Psalm 50:21

These things hast thou done, and I kept silence; thou didst think that I was altogether such a one as thyself, but I will reprove thee and set them in order before thine eyes.

Matthew 3:2

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

Mark 1:15

and saying, The time is fulfilled, and the kingdom of God is at hand; repent ye and believe the gospel.

Luke 13:5

I tell you, No; but, except ye repent, ye shall all likewise perish.

Luke 15:10

Likewise, I say unto you, there is joy in the presence of the angels of God over one sinner that repents.

Acts 3:19

Repent ye therefore and be converted that your sins may be blotted out, for the times of refreshing of the presence of the Lord are come;

Acts 26:17-20

delivering thee from the people and from the Gentiles, unto whom now I send thee

Romans 1:28

And even as they did not like to retain God in their knowledge, God gave them over to a perverse understanding, to do those things which are not convenient,

Romans 2:4

Or dost thou despise the riches of his goodness and forbearance and longsuffering, ignoring that the goodness of God leads thee to repentance?

Ephesians 4:17-32

This I say, therefore, and require in the Lord that from now on ye not walk as the other Gentiles walk in the vanity of their own senses,

Ephesians 5:6-8

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

1 Peter 1:14-15

as obedient sons, not conforming yourselves with the former desires that you had before 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 generations past suffered all the Gentiles to walk in their own ways.
Psalm 50:21
These things hast thou done, and I kept silence; thou didst think that I was altogether such a one as thyself, but I will reprove thee and set them in order before thine eyes.
Romans 1:28
And even as they did not like to retain God in their knowledge, God gave them over to a perverse understanding, to do those things which are not convenient,
Romans 3:23
for all have sinned and are made destitute of the glory of God,

General references

Numbers 15:27
And if any person sins through ignorance, then he shall bring a she goat of the first year as the sin.
Ecclesiastes 12:14
For God shall bring every work to judgment with every secret thing, whether it is good or whether it is evil.
Luke 5:32
I came not to call the righteous, but sinners to repentance.