Acts 17:30

Therefore [although] God has overlooked the times of ignorance, he now commands all people everywhere to repent,

Luke 24:47

and repentance and the forgiveness of sins would be proclaimed in his name to all the nations, beginning from Jerusalem.

Acts 14:16

who in generations that are past permitted all the nations to go their [own] ways.

Romans 3:25

whom God made publicly available as the mercy seat through faith in his blood, for a demonstration of his righteousness, because of the passing over of previously committed sins,

Mark 6:12

And they went out [and] proclaimed that [people] should repent.

Titus 2:11-12

For the grace of God has appeared, bringing salvation to all people,

Matthew 4:17

From that time [on], Jesus began to preach and to say, "Repent, because the kingdom of heaven is near."

Acts 11:18

And [when they] heard these [things], they became silent and praised God, saying, "Then God has granted the repentance [leading] to life to the Gentiles also!"

Acts 17:23

For [as I] was passing through and observing carefully your objects of worship, I even found an altar on which was inscribed, 'To an unknown God.' Therefore what you worship without knowing [it], this I proclaim to you--

Acts 20:21

testifying both to Jews and to Greeks with respect to repentance toward God and faith in our Lord Jesus.

Romans 3:23

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

2 Corinthians 7:10

For grief according to [the will of] God brings about a repentance [leading] to salvation, not to be regretted, but worldly grief brings about death.

1 Peter 4:3

For the time that has passed [was] sufficient {to do what the Gentiles desire to do}, having lived in licentiousness, [evil] desires, drunkenness, carousing, drinking parties, and wanton idolatries,

Psalm 50:21

These [things] you have done, and I have been silent; You imagined that I was just like you. I will rebuke you and present [an argument] before your eyes.

Matthew 3:2

and saying, "Repent, for the kingdom of heaven has come near!"

Mark 1:15

and saying, "The time is fulfilled and the kingdom of God has come near. Repent and believe in the gospel!"

Luke 13:5

No, I tell you, but unless you repent, you will all perish as well!"

Luke 15:10

In the [same] way, I tell you, there is joy in the presence of the angels of God over one sinner who repents."

Acts 3:19

Therefore repent and turn back, so that your sins may be blotted out,

Acts 26:17-20

rescuing you from the people and from the Gentiles to whom I am sending you,

Romans 1:28

And just as they did not see fit {to recognize God}, God gave them over to a debased mind, to do the things [that are] not proper,

Romans 2:4

Or do you despise the wealth of his kindness and forbearance and patience, not knowing that the kindness of God leads you to repentance?

Ephesians 4:17-32

This therefore I say and testify in the Lord, [that] you no longer walk as the Gentiles walk: in the futility of their mind,

Ephesians 5:6-8

Let no one deceive you with empty words, for because of these [things] the wrath of God is coming on the sons of disobedience.

1 Peter 1:14-15

As obedient children, do not be conformed to the former desires [you used to conform to] 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 that are past permitted all the nations to go their [own] ways.
Psalm 50:21
These [things] you have done, and I have been silent; You imagined that I was just like you. I will rebuke you and present [an argument] before your eyes.
Romans 1:28
And just as they did not see fit {to recognize God}, God gave them over to a debased mind, to do the things [that are] not proper,
Romans 3:23
for all have sinned and fall short of the glory of God,

General references

Numbers 15:27
" 'If one person sins unintentionally, that person will present a female goat {in its first year} as a sin offering.
Ecclesiastes 12:14
For God will bring every deed into judgment, including every secret thing, whether good or evil.
Luke 5:32
I have not come to call the righteous but sinners to repentance."