Note: this is an adaptation of a question asked on Hermenutics.SE. Check it out if interested in answers from different viewpoints.
When John fell down to worship the angel that had just showed him the prophetic visions of Revelation, the angel quickly stopped him in his tracks and corrected him for doing so, as he (the angel) was just a fellow servant and God is the only one to be worshipped:
8 I, John, am the one who heard and saw these things. And when I heard and saw them, I fell down to worship at the feet of the angel who showed them to me, 9 but he said to me, “You must not do that! I am a fellow servant with you and your brothers the prophets, and with those who keep the words of this book. Worship God.” [Revelation 22:8-9 ESV]
However, angels are reported to have worshipped Jesus as well. For example:
Hebrews 1:5-6 ESV:
5 For to which of the angels did God ever say,
“You are my Son, today I have begotten you”?
“I will be to him a father, and he shall be to me a son”?
6 And again, when he brings the firstborn into the world, he says,
“Let all God's angels worship him.”
Revelation 5:11-14 ESV:
11 Then I looked, and I heard around the throne and the living creatures and the elders the voice of many angels, numbering myriads of myriads and thousands of thousands, 12 saying with a loud voice,
“Worthy is the Lamb who was slain, to receive power and wealth and wisdom and might and honor and glory and blessing!”
13 And I heard every creature in heaven and on earth and under the earth and in the sea, and all that is in them, saying,
“To him who sits on the throne and to the Lamb be blessing and honor and glory and might forever and ever!”
14 And the four living creatures said, “Amen!” and the elders fell down and worshiped.
Why didn't the angel at Revelation 22:9 mention Jesus when he said to John that God is the one to be worshipped? Shouldn't the angel have concluded the verse with "Worship God and his Son"? Did the angel forget about Jesus?
I know that most trinitarians would quickly answer with something like "come on, these are trivial questions, Jesus is God, by saying God the angel is implicitly including Jesus in the list, He is part of the Godhead". Of course, that answer assumes that Jesus is God as a premise. But what about those who deny this premise? How would they answer these questions?