They meet Abraham in the form of three men and announce that he will have a son within the year. (Gen 18. 1-37)
Messengers of God are the two guests of Lot in Sodom. They protect him, his wife and their two daughters. But the Angels also have the task to execute the judgement of the wicked people of Sodom (Gen 19. 1-25).
Jacob in a dream saw the angels of God ascending and descending up and downstairs from Heaven (Gen 28,10)
After the expulsion of Adam and Eve from paradise "God put the Cherubim holding a sword with a dazzling flame east of Eden in order to look after the way leading to the tree of life." (Gen 3,24)
The angel of the Lord appears to Moses in the flame of fire in the middle of the bush (Ex 3, 1-33).
The angel of the Lord protects Israel passing across the sea and accompanies them during the exodus (Ex 23,20).
Send an angel to lead them in the desert (Ex 32.34; 33.2). "I send an angel ahead in order to look after you on the way and to enter into the place that I have prepared...".
The angels bring men’s prayers to God (Tb 12,12) (Rev 5,8; 8,3)..
Messenger of God it appears to Joshua in the appearance of a man with the drawn sword. The angel promises Joshua and Israel its help in the battle.
"While Joshua was near Jericho, looked up and saw a man standing before him with a drawn sword in its hand." Joshua asked it: "Are you for us or for our enemies?". The stranger replied: "I am the leader of the Army of the Lord". He, then, prepares Joshua to announce the next fall of Jericho.
"David looked up and saw the angel of the Lord standing between heaven and earth with a drawn sword in its hand, directed to Jerusalem." (1 Cr 21,16). David prays to save the people... "The Lord ordered the angel and it puts the sword into the sheath." (1 Cr 21,26).
Elijah was afraid and fled for his life, going to Beer-sheba of Judah. He left his servant there
and went a day's journey into the desert, until he came to a broom tree and sat beneath it. He prayed for death… He lay down and fell asleep under the broom tree, but then an angel touched him and ordered him to get up and eat. He looked and there at his head was a hearth cake and a jug of water. After he ate and drank, he lay down again, but the angel of the LORD came back a second time, touched him, and ordered, "Get up and eat, else the journey will be too long for you!"
He got up, ate and drank; then strengthened by that food; he walked forty days and forty nights to the mountain of God, Horeb. (1 Kings 19. 4-8).
I saw the Lord seated on a high and lofty throne, with the train of his garment filling the temple.
Seraphim were stationed above; each of them had six wings: with two they veiled their faces, with two they veiled their feet, and with two they hovered aloft.
"Holy, holy, holy is the LORD of hosts!" they cried one to the other. "All the earth is filled with his glory!" (Is 6, 1-4).
As the three young men refuse to fall down and worship the golden statue, which King Nebuchadnezzar has set up, they are cast into a white-hot furnace. But the angel of the Lord went down into the furnace, drove the fiery flames out of the furnace… Then these three in the furnace with one voice sang, glorifying and blessing God. (Dan 3).
Twice Darius the Mede ordered Daniel to be brought and cast into the lions' den, because the prophet against the law prayed to the God of Israel. Lions did not hurt him and he told the king: "My God has sent his angel and closed the lions' mouths". (Dan 6)
Tobias leaves for a trip because he needs money for the blind father. In this journey fraught with dangers he meets an angel (Raphael), who tells him to take one fish's liver and heart to heal his father. At the same time the angel heals Tobias’s young wife. At the end he reveals his identity: "I am Raphael, one of the seven angels who enter and serve before the Glory of the Lord." (Tb 12,15)
Angels in the Gospels
he Archangel Gabriel appears to Zachary in the temple to announce him the birth of a son, John. (Luke 1, 8-22)
Six months later the Archangel was sent by God to Mary to announce Her the Incarnation of Jesus. (Luke 1. 26-28)
Later the Archangel goes to the shepherds in the night and "The glory of the Lord wrapped them with light." He announces the birth of the Messiah and suddenly "A multitude of the heavenly host praising God" appears.
An angel appears in a dream to Joseph to announce the conception of the child. (Mt 1. 18-24) … Later it appears to Joseph in a dream again and ordered him to go to Egypt with the child and his mother. (Mt 3. 13-15).
When Herod had died, the angel of the Lord appeared in a dream to Joseph in Egypt and told him to go to the land of Israel." (Mt 2. 19-23)
Parable "When the poor man died, he was carried away by angels to the bosom of Abraham." (Luke 16.22).
At the beginning of the passion of Jesus, "to strengthen him an angel from heaven appeared to him". (Luke 22. 43).
"Do you think that I cannot call upon my Father and he will not provide me at this moment with more than twelve legions of angels?". (Mt 26. 53).
"From time to time an angel of the Lord used to come down into the pool called in Hebrew Bethesda and the water was stirred up, so the first one to get in [after the stirring of the water] was healed of whatever disease afflicted him" (John 5. 4).
Mary Magdalene and the other Mary came to see the tomb: "An angel of the Lord descended from heaven, approached, rolled back the stone, and sat upon it. His appearance was like lightning and his clothing was white as snow…then the angel said to the women: "...He is not here, for he has been raised just as he said…" (Mt 28. 1-6).
Ascension of Jesus.
"Suddenly two men dressed in white garments stood beside them" and explained what it had happened. (Acts 1. 10).
"When he comes in his Father's glory with the holy angels". (Mk 8. 38).
To the parusia the man's child
At His coming of the end of the age the Son of Man "will send out his angels with a trumpet blast, and they will gather his elect from the four winds, from one end of the heavens to the other". (Mt. 24.31).
"When the Son of Man comes in his glory, and all the angels with him, he will sit upon his glorious throne..." (Mt. 25.31).
"When the high priest put the apostles in the public jail, during the night, the angel of the Lord opened the doors of the prison, led them out" (Acts 5.18)
Herod put in prison Peter but suddenly the angel of the Lord stood by him and a light shone in the cell. He tapped Peter on the side and awakened him, saying, "Get up quickly". The chains fell from his wrists... the iron gate opened for them by itself." (Acts 12. 4-9).
For last night an angel of the God to whom (I) belong and whom I serve stood by me and said, 'Do not be afraid, Paul. You are destined to stand before Caesar; and behold, for your sake, God.' Therefore, keep up your courage, men; I trust in God that it will turn out as I have been told.
When Paul is in danger of sinking, an angel of the God stood by him during the night saying that God has granted safety to him and to all who are sailing with him. (Acts 27. 23-25).
The angels make uncountable ranks around the throne of God in heaven. They offer the prayers of all the holy ones. (Rev 5,8; 8,3).
Revelation gives, first of all, seven messages to the seven angels of the Asia church. (Rev 1, 4-3,22).
The angels keep under control the destructive natural powers such as the wind angels (Rev 7.1-8); the fire angels (Rev 14.18); the water angels (Rev 16.5).
They write down the actions of people on the celestial books (Rev 17.8; 20.12). Seven angels are given seven trumpets at whose sound the judgement starts (Rev 8.9). Seven angels announce the last seven wounds (Rev 15.16).
Finally the angel of the Judgement binds the dragon and throws it into the Abyss (Rev. 20. 1-3).