For he will command his angels concerning you to guard you in all your ways. (Psalm 91:11 ESV)

Do not neglect to show hospitality to strangers, for thereby some have entertained angels unawares. (Hebrews 13:2 ESV)

Then I saw the seven angels who stand before God, and seven trumpets were given to them. (Revelation 8:2 ESV)

Then I looked, and I heard an eagle crying with a loud voice as it flew directly overhead, “Woe, woe, woe to those who dwell on the earth, at the blasts of the other trumpets that the three angels are about to blow!” (Revelation 8:13 ESV)

So the four angels, who had been prepared for the hour, the day, the month, and the year, were released to kill a third of mankind. (Revelation 9:15 ESV)

Now war arose in heaven, Michael and his angels fighting against the dragon. And the dragon and his angels fought back, (Revelation 12:7 ESV)

And the great dragon was thrown down, that ancient serpent, who is called the devil and Satan, the deceiver of the whole world—he was thrown down to the earth, and his angels were thrown down with him. (Revelation 12:9 ESV)

And the angels who did not stay within their own position of authority, but left their proper dwelling, he has kept in eternal chains under gloomy darkness until the judgment of the great day— (Jude 1:6 ESV)

and the sanctuary was filled with smoke from the glory of God and from his power, and no one could enter the sanctuary until the seven plagues of the seven angels were finished. (Revelation 15:8 ESV)

For the Son of Man is going to come with his angels in the glory of his Father, and then he will repay each person according to what he has done. (Matthew 16:27 ESV)

The one who conquers will be clothed thus in white garments, and I will never blot his name out of the book of life. I will confess his name before my Father and before his angels. (Revelation 3:5 ESV)