Angels are referred to together as a heavenly host

Psalm 103:20, 21 Praise the LORD, you his angels, you mighty ones who do his bidding, who obey his word. Praise the LORD, all his heavenly hosts, you his servants who do his will.

Psalm 148:2  Praise him, all his angels; praise him, all his heavenly hosts.

The idea of hosts is also attached to armies and to stars. The angels form a great army, an army of light. (Cf Job 38:7; Revelation 9:1, 11).


Angels are on rare occasions referred to as gods

Psalm 8:5 You have made them a little lower than the angels (gods) and crowned them with glory and honour. 

Psalm 97:7 All who worship images are put to shame, those who boast in idols -  worship him, all you gods!

See

Hebrews 2:7 You made them a little lower than the angels; you crowned them with glory and honour

Hebrews 1:6 And again, when God brings his firstborn into the world, he says, "Let all God's angels worship him."

2:7 Angels are mighty ones, gods of a sort. 

Angels are sometimes referred to as Sons of God

Job 1:6 One day the angels came to present themselves before the LORD, and Satan also came with them.

Job 2:1 On another day the angels came to present themselves before the LORD, and Satan also came with them to present himself before him.

Job 38:6, 7 On what were its footings set, or who laid its cornerstone - while the morning stars sang together and all the angels shouted for joy?

(Psalm 89:6 For who in the skies above can compare with the LORD? Who is like the LORD among the heavenly beings? [Sons of God])

Not only Christ an his people but angels, because they are so close to God, are known in the Bible as sons of God.


Angels are not the only heavenly creatures, there are also seraphim

Isaiah 6:1-6 In the year that King Uzziah died, I saw the Lord, high and exalted, seated on a throne; and the train of his robe filled the temple. Above him were seraphim, each with six wings: With two wings they covered their faces, with two they covered their feet, and with two they were flying. And they were calling to one another: "Holy, holy, holy is the LORD Almighty; the whole earth is full of his glory." At the sound of their voices the doorposts and thresholds shook and the temple was filled with smoke. "Woe to me!" I cried. "I am ruined! For I am a man of unclean lips, and I live among a people of unclean lips, and my eyes have seen the King, the LORD Almighty." Then one of the seraphim flew to me with a live coal in his hand, which he had taken with tongs from the altar. 

(See also Revelation 4:7, 8)

Seraphim (flaming ones) may be the same as cherubim but they may be a different rank of creature to angels or cherubim.


Angels are not the only heavenly creatures, there are also cherubim

Genesis 3:24 After he drove the man out, he placed on the east side of the Garden of Eden cherubim and a flaming sword flashing back and forth to guard the way to the tree of life.

Exodus 25:17-21 Make an atonement cover of pure gold--two and a half cubits long and a cubit and a half wide. And make two cherubim out of hammered gold at the ends of the cover. Make one cherub on one end and the second cherub on the other; make the cherubim of one piece with the cover, at the two ends. The cherubim are to have their wings spread upward, overshadowing the cover with them. The cherubim are to face each other, looking toward the cover. Place the cover on top of the ark and put in the ark the tablets of the covenant law that I will give you.

Ezekiel 10 I looked, and I saw the likeness of a throne of lapis lazuli above the vault that was over the heads of the cherubim. The LORD said to the man clothed in linen, "Go in among the wheels beneath the cherubim. Fill your hands with burning coals from among the cherubim and scatter them over the city." And as I watched, he went in. Now the cherubim were standing on the south side of the temple when the man went in, and a cloud filled the inner court. Then the glory of the LORD rose from above the cherubim and moved to the threshold of the temple. The cloud filled the temple, and the court was full of the radiance of the glory of the LORD. The sound of the wings of the cherubim could be heard as far away as the outer court, like the voice of God Almighty when he speaks. When the LORD commanded the man in linen, "Take fire from among the wheels, from among the cherubim," the man went in and stood beside a wheel. Then one of the cherubim reached out his hand to the fire that was among them. He took up some of it and put it into the hands of the man in linen, who took it and went out. (Under the wings of the cherubim could be seen what looked like human hands.) I looked, and I saw beside the cherubim four wheels, one beside each of the cherubim; the wheels sparkled like topaz. As for their appearance, the four of them looked alike; each was like a wheel intersecting a wheel. As they moved, they would go in any one of the four directions the cherubim faced; the wheels did not turn about as the cherubim went. The cherubim went in whatever direction the head faced, without turning as they went. Their entire bodies, including their backs, their hands and their wings, were completely full of eyes, as were their four wheels. I heard the wheels being called "the whirling wheels." Each of the cherubim had four faces: One face was that of a cherub, the second the face of a human being, the third the face of a lion, and the fourth the face of an eagle. Then the cherubim rose upward. These were the living creatures I had seen by the Kebar River. When the cherubim moved, the wheels beside them moved; and when the cherubim spread their wings to rise from the ground, the wheels did not leave their side. When the cherubim stood still, they also stood still; and when the cherubim rose, they rose with them, because the spirit of the living creatures was in them. Then the glory of the LORD departed from over the threshold of the temple and stopped above the cherubim. While I watched, the cherubim spread their wings and rose from the ground, and as they went, the wheels went with them. They stopped at the entrance of the east gate of the LORD's house, and the glory of the God of Israel was above them. These were the living creatures I had seen beneath the God of Israel by the Kebar River, and I realized that they were cherubim. Each had four faces and four wings, and under their wings was what looked like human hands. Their faces had the same appearance as those I had seen by the Kebar River. Each one went straight ahead.

(See also 1 Kings 6:25-35 and 1 Samuel 4:4 and Psalms 80:1, 99:1, 104:4.)

Angels are not to be consulted for guidance but we are to consult God's Word

Deuteronomy 18:10-15 Let no one be found among you who sacrifices their son or daughter in the fire, who practices divination or sorcery, interprets omens, engages in witchcraft, or casts spells, or who is a medium or spiritist or who consults the dead. Anyone who does these things is detestable to the LORD; because of these same detestable practices the LORD your God will drive out those nations before you. You must be blameless before the LORD your God. The nations you will dispossess listen to those who practice sorcery or divination. But as for you, the LORD your God has not permitted you to do so. The LORD your God will raise up for you a prophet like me from among you, from your fellow Israelites. You must listen to him.

Isaiah 8:19, 20 When someone tells you to consult mediums and spiritists, who whisper and mutter, should not a people inquire of their God? Why consult the dead on behalf of the living? Consult God's instruction and the testimony of warning. If anyone does not speak according to this word, they have no light of dawn. 

Both passages make clear that we are not to consult any sort of spirit, including angels good or bad. Rather we must consult God's Word, in which Christ is revealed.

Angels are able to open locked doors

In Acts 5:19 we read that, in order to rescue Peter and John from prison, during the night an angel of the Lord opened the doors of the jail and brought them out. This suggests that angels have complete command of physical barriers. They cannot be chained or held back by any physical barrier. This is not surprise as they are essentially spiritual creatures.

Angels are real personalities

In Luke 1:19 Gabriel says to Zechariah, "I am Gabriel. I stand in the presence of God, and I have been sent to speak to you and to tell you this good news." He has a name and can speak and refers to himself in the first person. He cannot therefore be a mere natural force or a psychological phenomenon. If we believe the Bible, we are compelled to believe in angels.

Angels have always had their doubters and detractors

In a footnote in Acts 23:8 Luke tells us that The Sadducees say that there is no resurrection, and that there are neither angels nor spirits, but the Pharisees believe all these things. There have been sceptics in every age who deny the existence of angels. It is not unique to our own modern times. We ought not to be surprised then at unbelief. No doubt the angels themselves take a low view of their doubters while the demons chuckle to themselves at their success.