1 Peter 1:20

He was destined before the foundation of the world, but was revealed in these last times for your sake.

Ephesians 1:4

just as he chose us in him before the foundation of the world, that we would be holy and blameless before him. In love

Colossians 1:26

the mystery that has been kept hidden for ages and generations, but is now disclosed to the saints.

Hebrews 9:26

For then he would have had to suffer repeatedly since the foundation of the world. But now, he has appeared once for all at the end of the ages to put away sin by the sacrifice of himself.

2 Timothy 1:9-10

who has saved us and called us with a holy calling, not according to our works, but according to his own purpose and the grace which was granted us in Christ Jesus from all eternity,

Titus 1:2-3

in the hope of eternal life, which God, who cannot lie, promised long ages ago,

Hebrews 1:2

but in these last days he has spoken to us by his Son, whom he appointed heir of all things, and through whom also he made the world.

Revelation 13:8

and all who dwell on earth will worship it, every one whose name has not been written from the foundation of the world in the book of life of the Lamb that was slain.

Acts 3:25-26

You are the sons of the prophets and of the covenant which God made with your fathers, saying to Abraham, 'And in your seed all the families of the earth shall be blessed.'

Romans 3:25

whom God put forward as an atoning sacrifice by his blood, to be received through faith. This was to demonstrate his righteousness, because in his divine forbearance he had passed over sins committed beforehand;

Romans 16:25-26

Now to him who is able to establish you according to my gospel and the preaching of Jesus Christ, according to the revelation of the mystery which was kept secret for long ages

Galatians 4:4

But when the time had fully come, God sent forth his Son, born of a woman, born under the law,

Ephesians 1:10

as a plan for the fullness of the times, to unite all things in Christ, things in heaven and things on earth. In him

Ephesians 3:9

and to make plain to everyone the administration of the mystery which for ages has been hidden in God who created all things;

Ephesians 3:11

This was according to the eternal purpose which he carried out in Christ Jesus our Lord,

1 John 1:2

the life was manifested, and we have seen it, and testify to it, and proclaim to you the eternal life which was with the Father and was manifested to us

1 John 3:5

And you know that he appeared to take away our sins, and in him there is no sin.

1 John 3:8

He who commits sin is of the devil, for the devil has sinned from the beginning. The reason the Son of God appeared was to destroy the works of the devil.

1 John 4:9-10

In this the love of God was made manifest among us, that God sent his only Son into the world, so that we might live through him.

Treasury of Scripture Knowledge

Summary

Who verily was foreordained before the foundation of the world, but was manifest in these last times for you,

General references

Bible References

But

Acts 3:25
You are the sons of the prophets and of the covenant which God made with your fathers, saying to Abraham, 'And in your seed all the families of the earth shall be blessed.'
Colossians 1:26
the mystery that has been kept hidden for ages and generations, but is now disclosed to the saints.
1 John 1:2
the life was manifested, and we have seen it, and testify to it, and proclaim to you the eternal life which was with the Father and was manifested to us
1 John 3:5
And you know that he appeared to take away our sins, and in him there is no sin.
1 John 4:9
In this the love of God was made manifest among us, that God sent his only Son into the world, so that we might live through him.

In

Galatians 4:4
But when the time had fully come, God sent forth his Son, born of a woman, born under the law,
Ephesians 1:10
as a plan for the fullness of the times, to unite all things in Christ, things in heaven and things on earth. In him
Hebrews 1:2
but in these last days he has spoken to us by his Son, whom he appointed heir of all things, and through whom also he made the world.
Hebrews 9:26
For then he would have had to suffer repeatedly since the foundation of the world. But now, he has appeared once for all at the end of the ages to put away sin by the sacrifice of himself.

General references

Acts 15:18
says the Lord, who makes these things known from long ago.