'Angel of the Lord' in the Bible

But when he was giving thought to these things, an angel of the Lord came to him in a dream, saying, Joseph, son of David, have no fear of taking Mary as your wife; because that which is in her body is of the Holy Spirit.

And Joseph did as the angel of the Lord had said to him, and took her as his wife;

And when they had gone, an angel of the Lord came to Joseph in a dream, saying, Get up and take the young child and his mother, and go into Egypt, and do not go from there till I give you word; for Herod will be searching for the young child to put him to death.

But when Herod was dead, an angel of the Lord came in a dream to Joseph in Egypt,

And there was a great earth-shock; for an angel of the Lord came down from heaven and, rolling back the stone, took his seat on it.

And he saw an angel of the Lord in his place on the right side of the altar.

And an angel of the Lord came to them, and the glory of the Lord was shining round about them: and fear came on them.

But in the night an angel of the Lord, opening the doors of the prison, took them out and said,

But an angel of the Lord said to Philip, Get up, and go to the south, to the road which goes from Jerusalem to Gaza, through the waste land.

He saw in a vision, clearly, at about the ninth hour of the day, an angel of the Lord coming to him and saying to him, Cornelius!

And a great light was seen shining in the room, and an angel of the Lord came to Peter and, touching him on his side so that he came out of his sleep, said, Get up quickly. And his chains came off his hands.

And straight away the angel of the Lord sent a disease on him, because he did not give the glory to God: and his flesh was wasted away by worms, and so he came to his end.