John Chrysostom
Therefore, when the Spirit was sending, and God was commanding, there by calling through an angel and here by urging and resolving the ambiguity of the matter, what had to be done? Yet Peter says none of this. Instead, he points to the subsequent event, which by itself was an undoubted testimony. Why, you will say, was that not the only testimony? Because of the overflowing power from God, so that it would be clear that the beginning of this matter was not from the apostle. If he had gone of himself and nothing of this kind had happened, they would have been exceedingly indignant. Therefore he prepares their minds from afar and says to them: "They received the Holy Spirit, just as we did." And again: "The Holy Spirit fell on them, just as on us at the beginning."