There are only a few instances of the angel of the Lord reference in the New Testament.   Most of them have to do with the announcement of Jesus' birth.   The only one that is difficult is the one where the angel of the Lord appears to Joseph in a dream and tells him to take Jesus and Mary to Egypt.   Since this is a dream and not a physical appearance there is no problem with considering the angel of the Lord as being Jesus.   

The purpose of this argument is to bring clarity to the fact that there is only one God and His name is Jesus.   The different references to God in the Old Testament are by virtue of the fact that Jesus had not yet appeared to implement His plan of salvation.   So, the people were being taught about aspects of His character and expectations in terms that their primitive understanding could grasp.   

That 'the angel of the Lord' is Jesus is not doctrine.   

To illustrate the clarity and power of grasping the oneness of the Lord, the verses below have had 'the angel of the Lord' replaced with 'Jesus'.   

And Jesus found her by a fountain of water in the wilderness, by the fountain in the way to Shur. Gen 16:7

And Jesus said unto her, Return to your mistress, and submit yourself under her hands. Gen 16:9

And Jesus said unto her, I will multiply your seed exceedingly, that it shall not be numbered for multitude. Gen 16:10

And Jesus said unto her, Behold, you are with child, and shall bear a son, and shall call his name Ishmael; because the Lord has heard your affliction. Gen 16:11

And Jesus called unto him out of heaven, and said, Abraham, Abraham: and he said, Here am I. Gen 22:11

And Jesus called unto Abraham out of heaven the second time, Gen 22:15

And Jesus appeared unto him in a flame of fire out of the midst of a bush: and he looked, and, behold, the bush burned with fire, and the bush was not consumed. Exo 3:2

And the Lord's anger was kindled because he went: and Jesus stood in the way for an adversary against him.     Now he was riding upon his ass, and his two servants were with him. Num 22:22

And the ass saw Jesus standing in the way, and his sword drawn in his hand: and the ass turned aside out of the way, and went into the field: and Balaam struck the ass, to turn her into the way. Num 22:23

But Jesus stood in a path of the vineyards, a wall being on this side, and a wall on that side. Num 22:24

And when the ass saw Jesus, she thrust herself unto the wall, and crushed Balaam's foot against the wall: and he struck her again. Num 22:25

And Jesus went further, and stood in a narrow place, where was no way to turn either to the right hand or to the left. Num 22:26

And when the ass saw Jesus, she fell down under Balaam: and Balaam's anger was kindled, and he struck the ass with a staff. Num 22:27

Then the Lord opened the eyes of Balaam, and he saw Jesus standing in the way, and his sword drawn in his hand: and he bowed down his head, and fell flat on his face. Num 22:31

And Jesus said unto him, Wherefore have you struck your ass these three times?     behold, I went out to withstand you, because your way is perverse before me: Num 22:32

And Balaam said unto Jesus, I have sinned; for I knew not that you stood in the way against me: now therefore, if it displease you, I will get me back again. Num 22:34

And Jesus said unto Balaam, Go with the men: but only the word that I shall speak unto you, that you shall speak.     So Balaam went with the princes of Balak. Num 22:35

And it came to pass, when Jesus spoke these words unto all the children of Israel, that the people lifted up their voice, and wept. Jug 2:4

Curse you Meroz, said Jesus, curse you bitterly the inhabitants thereof; because they came not to the help of the Lord, to the help of the Lord against the mighty. Jug 5:23

And Jesus appeared unto him, and said unto him, The Lord is with you, you mighty man of valour. Jug 6:12

Then Jesus put forth the end of the staff that was in his hand, and touched the flesh and the unleavened cakes; and there rose up fire out of the rock, and consumed the flesh and the unleavened cakes.     Then Jesus departed out of his sight. Jug 6:21

And Jesus appeared unto the woman, and said unto her, Behold now, you are barren, and bear not: but you shall conceive, and bear a son. Jug 13:3

And Jesus said unto Manoah, Of all that I said unto the woman let her beware. Jug 13:13

And Manoah said unto Jesus, I pray you, let us detain you, until we shall have made ready a kid for you. Jug 13:15

And Jesus said unto Manoah, Though you detain me, I will not eat of your bread: and if you will offer a burnt offering, you must offer it unto the Lord.     For Manoah knew not that he was an angel of the Lord. Jug 13:16 Notice that Manoah thought that this was The Angel Of The Lord but it was actually an angel of the Lord.     So, this in not preincarnate Jesus appearing to Manoah.

And Manoah said unto Jesus, What is your name, that when your sayings come to pass we may do you honour? Jug 13:17

And Jesus said unto him, Why asks you thus after my name, seeing it is secret? Jug 13:18

For it came to pass, when the flame went up toward heaven from off the altar, that Jesus ascended in the flame of the altar.     And Manoah and his wife looked on it, and fell on their faces to the ground. Jug 13:20

But Jesus did no more appear to Manoah and to his wife.     Then Manoah knew that he was an angel of the Lord. Jug 13:21 Again, this is not preincarnate Jesus appearing to Manoah but an angel of the Lord.

And when the angel stretched out his hand upon Jerusalem to destroy it, the Lord repented him of the evil, and said to the angel that destroyed the people, It is enough: stay now your hand.     And Jesus was by the threshingplace of Araunah the Jebusite. 2Sa 24:16 God does not repent because He never makes a mistake.      Our Lord is disappointed when we are foolish, weak, unbelieving and disobedient.

And Jesus came again the second time, and touched him, and said, Arise and eat; because the journey is too great for you. 1Ki 19:7

But Jesus said to Elijah the Tishbite, Arise, go up to meet the messengers of the king of Samaria, and say unto them, Is it not because there is not a god in Israel, that you go to enquire of Baalzebub the god of Ekron? 2Ki 1:3

And Jesus said unto Elijah, Go down with him: be not afraid of him.     And he arose, and went down with him unto the king. 2Ki 1:15

And it came to pass that night, that Jesus went out, and struck in the camp of the Assyrians an hundred fourscore and five thousand: and when they arose early in the morning, behold, they were all dead corpses. 2Ki 19:35

Either three years' famine; or three months to be destroyed before your foes, while that the sword of your enemies overtakes you; or else three days the sword of the Lord, even the pestilence, in the land, and Jesus destroying throughout all the coasts of Israel.     Now therefore advise yourself what word I shall bring again to him that sent me. 1Ch 21:12

And the Holy Spirit sent an angel unto Jerusalem to destroy it: and as he was destroying, the Lord beheld, and he repented him of the evil, and said to the angel that destroyed, It is enough, stay now your hand.     And Jesus stood by the threshingfloor of Ornan the Jebusite. 1Ch 21:15 God does not repent because He never makes a mistake.     Num 23:19 Our Lord is disappointed when we are foolish, weak, unbelieving and disobedient.

And David lifted up his eyes, and saw Jesus stand between the earth and the heaven, having a drawn sword in his hand stretched out over Jerusalem.     Then David and the elders of Israel, who were clothed in sackcloth, fell upon their faces. 1Ch 21:16

Then Jesus commanded Gad to say to David, that David should go up, and set up an altar unto the Lord in the threshingfloor of Ornan the Jebusite. 1Ch 21:18

But David could not go before it to enquire of the Lord: for he was afraid because of the sword of Jesus. 1Ch 21:30

Jesus encamps round about them that fear him, and delivers them. Psm 34:7 Psm 91:11

Let them be as chaff before the wind: and let Jesus chase them. Psm 35:5 Lev 26:8

Let their way be dark and slippery: and let Jesus persecute them. Psm 35:6 Psm 34:7

Then Jesus went forth, and struck in the camp of the Assyrians a hundred and fourscore and five thousand: and when they arose early in the morning, behold, they were all dead corpses. Isa 37:36

And they answered Jesus that stood among the myrtle trees, and said, We have walked to and fro through the earth, and, behold, all the earth sits still, and is at rest. Zec 1:11

Then Jesus answered and said, O Lord of hosts, how long will you not have kindness on Jerusalem and on the cities of Judah, against which you have had indignation these threescore and ten years? Zec 1:12

And he showed me Joshua the high priest standing before Jesus, and Satan standing at his right hand to resist him. Zec 3:1

And I said, Let them set a fair mitre upon his head.     So they set a fair mitre upon his head, and clothed him with garments.     And Jesus stood by. Zec 3:5

And Jesus protested unto Joshua, saying, Zec 3:6

In that day shall the Lord defend the inhabitants of Jerusalem; and he that is feeble among them at that day shall be as David; and the house of David shall be as the Lord, as Jesus before them. Zec 12:8

But while he thought on these things, behold, Jesus appeared unto him in a dream, saying, Joseph, you son of David, fear not to take unto you Mary your wife: for that which is conceived in her is of the Holy Spirit. Mat 1:20 Jesus was fathered by the Holy Spirit.     Later when we hear Jesus talk about the Father, He is talking about the Holy Spirit.

Then Joseph being raised from sleep did as Jesus had bidden him, and took unto him his wife: Mat 1:24 Joseph honored the Word of the Lord and so he honored Mary and Jesus.

And when they were departed, behold, Jesus appears to Joseph in a dream, saying, Arise, and take the young child and his mother, and flee into Egypt, and be you there until I bring you word: for Herod will seek the young child to destroy him. Mat 2:13 A direct Word from the Lord through the angel of the Lord explaing what should be done and why it should be done.

And, behold, there was a great earthquake: for Jesus descended from heaven, and came and rolled back the stone from the door, and sat upon it. Mat 28:2 Crucifixion Week

And, lo, Jesus came upon them, and the glory of the Lord shone round about them: and they were very much afraid. Luk 2:9

But Jesus by night opened the prison doors, and brought them forth, and said, Act 5:19 The believers were praying and the prisoners were praying and the Lord answered.

And Jesus spoke unto Philip, saying, Arise, and go toward the south unto the way that goes down from Jerusalem unto Gaza, which is desert. Act 8:26

And, behold, Jesus came upon him, and a light shined in the prison: and he struck Peter on the side, and raised him up, saying, Arise up quickly.     And his chains fell off from his hands. Act 12:7

And immediately Jesus struck him, because he gave not the Lord the glory: and he was eaten of worms, and gave up His Holy Spirit. Act 12:23