'Angel of the Lord' in the Bible

but after he had planned this, there appeared an angel of the Lord to him in a dream saying, "Joseph, son of David, fear not to take Mary your wife home, for what is begotten in her comes from the holy Spirit.

So on waking from sleep Joseph did as the angel of the Lord had commanded him; he took his wife home,

After they had gone, there appeared an angel of the Lord to Joseph in a dream, saying, "Rise, take the child and his mother and flee to Egypt; stay there till I tell you. For Herod is going to search for the child and destroy him."

But when Herod died, there appeared an angel of the Lord in a dream to Joseph in Egypt,

But a great earthquake took place; an angel of the Lord came down from heaven and went and rolled away the boulder and sat on it.

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

and an angel of the Lord flashed upon them, the glory of the Lord shone all round them. They were terribly afraid,

but an angel of the Lord opened the prison-doors during the night and brought them out, saying,

but an angel of the Lord said to Philip, "Get up and go south, along the road from Jerusalem to Gaza" (the desert-route).

But an angel of the Lord flashed on him, and a light shone in the cell; striking Peter on the side he woke him, saying, "Quick, get up!" The fetters dropped from his hands,

and in a moment an angel of the Lord struck him, because he had not given due glory to God; he was eaten up by worms and so expired.