when.

Galatians 2:9
And recognizing the grace I had been given, James, Cephas, and John--those reputed to be pillars--gave me and Barnabas the right hand of fellowship, so that we should go to the Gentiles and they to the Jews.

Acts 15:12, 25, 26
The whole assembly fell silent as they listened to Barnabas and Paul describing the signs and wonders God had done among the Gentiles through them. . . .

2 Peter 3:15
Consider also that our Lord's patience brings salvation, just as our beloved brother Paul also wrote you with the wisdom God gave him.

the gospel of the uncircumcision.

Galatians 1:16
to reveal His Son in me so that I might preach Him among the Gentiles, I did not rush to consult with flesh and blood,

Acts 13:46-48
Then Paul and Barnabas answered them boldly: "It was necessary to speak the word of God to you first. But since you reject it and do not consider yourselves worthy of eternal life, we now turn to the Gentiles. . . .

Acts 18:6
But when they opposed and insulted him, he shook out his garments and told them, "Your blood be on your own heads! I am innocent of it. From now on I will go to the Gentiles."

Acts 28:28
Be advised, therefore, that God's salvation has been sent to the Gentiles, and they will listen!"

Romans 1:5
Through Him and on behalf of His name, we received grace and apostleship to call all those among the Gentiles to the obedience that comes from faith.

Romans 11:13
I am speaking to you Gentiles. Inasmuch as I am the apostle to the Gentiles, I magnify my ministry,

1 Thessalonians 2:4
Instead, we speak as those approved by God to be entrusted with the gospel, not in order to please men but God, who examines our hearts.

1 Timothy 2:7
For this reason I was appointed as a herald, an apostle, and a faithful and true teacher of the Gentiles. I am telling the truth; I am not lying about anything.

2 Timothy 1:11
to which I was appointed a preacher, apostle, and teacher.