'Angel of the Lord' in the Bible

And the men on the horses answered the Angel of the Lord who stood among the myrtle trees and said, “We have gone throughout the earth [patrolling it] and behold, all the earth sits at rest [in peace and free from war].”

Then the Angel of the Lord said, “O Lord of hosts, how long will You withhold mercy and compassion from Jerusalem and the cities of Judah, against which You have had indignation and anger these seventy years [of the Babylonian captivity]?”

Then the guiding angel showed me Joshua the high priest [representing disobedient, sinful Israel] standing before the Angel of the Lord, and Satan standing at Joshua’s right hand to be his adversary and to accuse him.

And I (Zechariah) said, “Let them put a clean turban on his head.” So they put a clean turban on his head and clothed him with [rich] garments. And the Angel of the Lord stood by.

And the Angel of the Lord [solemnly and earnestly] admonished Joshua, saying,

In that day the Lord will defend the people of Jerusalem, and the one who is impaired among them in that day [of persecution] will become [strong and noble] like David; and the house of David will be like God, like the Angel of the Lord [who is] before them.