'Angel of the Lord' in the Bible

But while he was thinking on these things, behold an angel of the Lord appeared to him in a dream, saying, Joseph, thou son of David, fear not to take to thee Mary thy wife; for that which is begotten in her, is of the Holy Ghost.

Then Joseph, being raised from sleep, did as the angel of the Lord had bidden him, and took unto him his wife:

And when they were gone back, behold an angel of the Lord appeareth to Joseph in a dream, saying, Arise and take the young child and his mother, and flee into Egypt, and continue there till I shall tell thee; for Herod will seek the young child to destroy him.

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

And behold, there had been a great earthquake, and an angel of the Lord descending from heaven, had come and rolled away the stone from the door and sat upon it.

And there appeared to him an angel of the Lord, standing on the right side of the altar of incense.

And lo an angel of the Lord came upon them, and the glory of the Lord shone round about them; and they were sore afraid.

But an angel of the Lord opened the prison-doors, by night, and bringing them forth,

And forty years being expired, the angel of the Lord appeared to him, in the wilderness, in a flame of fire in a bush.

And an angel of the Lord spake to Philip, saying, Arise and go toward the south by the way leading down from Jerusalem to Gaza, which is desert.

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

And behold, an angel of the Lord stood over him, and light shined in the house: and smiting Peter on the side he waked him, saying, Rise up quickly. And his chains fell off from his hands.

And immediately an angel of the Lord smote him, because he gave not God the glory; and being eaten by worms, he expired.