Psalm 34:7 The Angel of the Lord encamps around those who fear Him, and He delivers them!
Psalm 103:20 Bless the Lord O you His angels, you mighty ones who do His word-obeying the voice Of His word!
Revelation 14 talks about three angels. (Verse 6) talks about an angel flying in midair. He had the eternal gospel to proclaim to those who live on earth. And to every nation, tribe, language and people! He said with a loud voice: “Fear God, and give Him glory because the hour of judgement has come. Worship Him who made the heavens, the earth, the sea and the springs of water.”