Acts 10:45

Those converts from Judaism, who had come with Peter, were amazed that the gift of the Holy Spirit had been bestowed even upon the Gentiles;

Acts 10:23

Upon this Peter invited them in and entertained them. The next day he lost no time in setting out with them, accompanied by some of the Brethren from Jaffa;

Acts 2:38

"Repent," answered Peter, "and be baptized every one of you in the Faith of Jesus Christ for the forgiveness of your sins; and then you will receive the gift of the Holy Spirit.

Acts 2:33

And now that he has been exalted to the right hand of God, and has received from the Father the promised gift of the Holy Spirit, he has begun to pour out that gift, as you yourselves now see and hear.

Acts 11:3

On the ground that he had visited people who were not circumcised, and had taken meals with them.

Acts 11:15-18

I had but just begun to speak," continued Peter, "when the Holy Spirit fell on them, exactly as on us at the first;

Galatians 2:15

We, though we are Jews by birth and not outcasts of Gentile origin, know that no one is pronounced righteous as the result of obedience to Law, but only through faith in Christ Jesus.

Galatians 3:13-14

Christ ransomed us from the curse pronounced in the Law, by taking the curse on himself for us, for Scripture says--'Cursed is any one who is hanged on a tree.'

Ephesians 2:11

Remember, therefore, that you were once Gentiles yourselves, as your bodies showed; you were called 'The Uncircumcised' by those who were called 'The Circumcised'--circumcised only by the hand of man!

Ephesians 3:5-8

In former generations it was not made known to mankind, as fully as it has now been revealed by the Spirit to the Apostles and Prophets among Christ's People--

Colossians 2:13-14

And to you, who once were 'dead,' by reason of your sins and your uncircumcised nature--to you God gave Life in giving life to Christ! He pardoned all our sins!

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, though we are Jews by birth and not outcasts of Gentile origin, know that no one is pronounced righteous as the result of obedience to Law, but only through faith in Christ Jesus.
Ephesians 2:11
Remember, therefore, that you were once Gentiles yourselves, as your bodies showed; you were called 'The Uncircumcised' by those who were called 'The Circumcised'--circumcised only by the hand of man!
Ephesians 3:5
In former generations it was not made known to mankind, as fully as it has now been revealed by the Spirit to the Apostles and Prophets among Christ's People--
Colossians 2:13
And to you, who once were 'dead,' by reason of your sins and your uncircumcised nature--to you God gave Life in giving life to Christ! He pardoned all our sins!