Acts 10:45

The Jewish believers who had come with Peter were amazed because the gift of the holy Spirit had been showered upon the heathen too,

Acts 10:23

So Peter invited them in and entertained them. The next day he started off with them, accompanied by some of the brothers from Joppa,

Acts 2:38

Peter said to them, "You must repent, and every one of you be baptized in the name of Jesus Christ, in order to have your sins forgiven; then you will receive the gift of the holy Spirit,

Acts 2:33

So he has been exalted to God's right hand, and has received from his Father and poured over us the holy Spirit that had been promised, as you see and hear.

Acts 11:3

charging him with having visited and eaten with men who were not Jews.

Acts 11:15-18

When I began to speak to them, the holy Spirit fell upon them just as it did upon us at the beginning,

Galatians 2:15

We who are Jews by birth, and not sinful heathen,

Galatians 3:13-14

Christ ransomed us from the Law's curse by taking our curse upon himself (for the Scripture says, "Cursed be anyone who is hung on a tree")

Ephesians 2:11

So remember that you were once physically heathen, and called uncircumcised by those who called themselves circumcised, though only physically, by human hands.

Ephesians 3:5-8

(which in past ages was not disclosed to mankind as fully as it has now been revealed through the Spirit to his holy apostles and prophets)

Colossians 2:13-14

Yes, you who were dead through your misdeeds and physically uncircumcised, God raised to life with Christ. He forgave us all our misdeeds,

Treasury of Scripture Knowledge

Summary

And they of the circumcision which believed were astonished, as many as came with Peter, because that on the Gentiles also was poured out the gift of the Holy Ghost.

Bible References

The gentiles

Galatians 2:15
We who are Jews by birth, and not sinful heathen,
Ephesians 2:11
So remember that you were once physically heathen, and called uncircumcised by those who called themselves circumcised, though only physically, by human hands.
Ephesians 3:5
(which in past ages was not disclosed to mankind as fully as it has now been revealed through the Spirit to his holy apostles and prophets)
Colossians 2:13
Yes, you who were dead through your misdeeds and physically uncircumcised, God raised to life with Christ. He forgave us all our misdeeds,