Acts 10:44-48
The important thing here is something that is not even mentioned. No circumcision is required, which becomes important later. To whom does God reveal that one need not be circumcised to receive the Holy Spirit? They are all astonished, but Peter gives the authoritative answer, and it is to him that God speaks throughout these events. God does not reveal this to the other eleven but to Peter, first among equals, preeminent among them.
John W. Ritenbaugh
Unity (Part 2): God's Pattern of Leadership

No circumcision is required to receive the Holy Spirit, a detail unmentioned yet significant later. God reveals this truth to Peter, not to the other eleven. Though all present are astonished, Peter provides the authoritative answer, for it is to him that God speaks throughout these events. As first among equals, preeminent among them, Peter receives this revelation.