Today we see the testimony of Peter given to all those present with Cornelius. A Testimony that belongs to all of us. Jesus is risen for the forgiveness of sins (v.43) and that is how it is. Jesus shows no partiality (v.34) to race, color, or gender. He dies and rose for all people. He brings peace to us through Jesus Christ as well.
As for the word that he sent to Israel, preaching good news of peace through Jesus Christ (he is Lord of all). v.36.
Because we belong to Christ who creates true peace in us we can be the church at its best. Not the consumer church seeking to devour. But the missional church that seeks to testify and contribute as ambassadors for Christ. The Holy Spirit in you can inspire others through that same Spirit greatly. Because of our one peace in Christ we have one Testimony.
And the believers from among the circumcised who had come with Peter were amazed, because the gift of the Holy Spirit was poured out even on the Gentiles. v. 45