Jesus is Lord - Romans 10: 9
Everywhere we find angels mentioned in the Bible, the reference to angels is incidental to some other issue. They are not the primary subject of the passage. God’s love and grace is. When they are mentioned, it is always in order to inform us further about God, what He does, and how He does it. This very fact should teach us that not only are angels not the focus, but they should certainly not be worshipped.
In two places in the book of Revelation, John was so awed by the revelation he had received from God through an angel, a very glorious creature, that he bowed down to worship the angel. Revelation 19:10 And I fell at his feet to worship him. And he said to me, “Do not do that; I am a fellow servant of yours and your brethren who hold the testimony of Jesus; worship God. For the testimony of Jesus is the spirit of prophecy.” And then again in Revelation 22 we are told: And when I heard and saw, I fell down to worship at the feet of the angel who showed me these things. 9 And he said to me, “Do not do that; I am a fellow servant of yours and of your brethren the prophets and of those who heed the words of this book; worship God.”
We told not to worship angels - First, they are but “fellow servants” with believers called upon to serve the Lord. Then he was told to “worship God.” Angels are powerful and awesome in many ways, but, like us, they are only creatures and servants of the living God who alone deserves our worship. This means we don’t pray to them or trust in them, even though God may use them as our guardian. Our trust is to be in God, not angels. They minister at His bidding.
Remember, the church at Colossae had been invaded by false teachers who were teaching a false humility and the worship of angels, claiming special mystic insights by way of visions in connection with their worship of angels (Co. 2:18). This was demonic because it was usurping the preeminent place and sufficiency of Christ as Savior and Lord. The claim was, He is not enough for salvation and spirituality. What you need is to worship angels, etc.