“And they said unto her, Thou art mad. But she constantly affirmed that it was even so. Then said they, It is his angel.”
King James Version (KJV)
12:15 They said, Thou art mad - As we say, Sure you are not in your senses to talk so. It is his angel - It was a common opinion among the Jews, that every man had his particular guardian angel, who frequently assumed both his shape and voice. But this is a point on which the Scriptures are silent.
Ac 12:15 It is his angel. The Jews held that every one had his guardian angel, and the thought his angel had assumed Peter's voice. A mistake, and Luke does not say whether the idea on which it was based is true or not.