'Angel of God' in the Bible

And the Angel of God said to him, Take the flesh and the unleavened cakes and lay on this rock, and pour out the broth. And he did so.

And the woman came and told her husband, saying, A man of God came to me, and His face was like the face of an Angel of God, very terrifying. But I did not ask Him where He came from, neither did He tell me His name.

And God listened to the voice of Manoah, and the Angel of God came again to the woman as she sat in the field. But Manoah her husband was not with her.