As much as I dislike apocalyptic writings, I thought I'd try reading Revelation and see what pops out at me as being possibly Jewish Christian. And while I'm inclined to see something in 1:6 with respect to the idea that priests in the Damascus Document are not literally priests ("To him who loves us and has freed us from our sins by his blood, and has made us to be a kingdom and priests to serve his God and Father"), I'll let that go for now to not invite any "controversy" about the DSS and Christian origins. But in 1:7 it says:
"Look, he is coming with the clouds,” and “every eye will see him, even those who pierced him”; and all peoples on earth “will mourn because of him.”
This seems similar to what James says in Hegesippus in EH 2.23.
The aforesaid Scribes and Pharisees therefore placed James upon the pinnacle of the temple, and cried out to him and said: ‘Thou just one, in whom we ought all to have confidence, forasmuch as the people are led astray after Jesus, the crucified one, declare to us, what is the gate of Jesus.’ And he answered with a loud voice, ‘Why do ye ask me concerning Jesus, the Son of Man? He himself sitteth in heaven at the right hand of the great Power, and is about to come upon the clouds of heaven.’ And when many were fully convinced and gloried in the testimony of James and said, ‘Hosanna to the Son of David,’ these same Scribes and Pharisees said again to one another, ‘We have done badly in supplying such testimony to Jesus. But let us go up and throw him down, in order that they may be afraid to believe him.’ And they cried out, saying, ‘Oh! oh! the just man is also in error.’
Rev. 2:9:
I know your afflictions and your poverty--yet you are rich! I know about the slander of those who say they are Jews and are not, but are a synagogue of Satan.
It's curious that it says "Jews" here instead of "Christians," which fits what Hegesippus says in EH 4.22 about the other first century CE Jewish sects.
The same writer also records the ancient heresies which arose among the Jews, in the following words: “There were, moreover, various opinions in the circumcision, among the children of Israel. The following were those that were opposed to the tribe of Judah and the Christ: Essenes, Galileans, Hemerobaptists, Masbothæans, Samaritans, Sadducees, Pharisees.”
In other words, in Hegesippus' view only Jewish Christians were "true" Jews, just like in Rev. 2:9.
James 2:5:
Listen, my dear brothers and sisters: Has not God chosen those who are poor in the eyes of the world to be rich in faith and to inherit the kingdom he promised those who love him?
And Gal. 2:10:
All they [James, Cephas and John] asked was that we should continue to remember the poor ...
Rev. 2:14 and 2:20:
Nevertheless, I have a few things against you: There are some among you who hold to the teaching of Balaam, who taught Balak to entice the Israelites to sin so that they ate food sacrificed to idols and committed sexual immorality.
Nevertheless, I have this against you: You tolerate that woman Jezebel, who calls herself a prophet. By her teaching she misleads my servants into sexual immorality and the eating of food sacrificed to idols.
This is similar to what James says in Acts 15:19 and 29:
It is my judgment, therefore, that we should not make it difficult for the Gentiles who are turning to God. Instead we should write to them, telling them to abstain from food polluted by idols, from sexual immorality ...
And the Didache 6:5-6 (which is commonly thought to be associated with Jewish Christianity):
And concerning food, bear what thou canst, but keep strictly from that which is offered to idols, for it is the worship of dead gods
Rev. 3:7:
These are the words of him who is holy and true, who holds the key of David. What he opens no one can shut, and what he shuts no one can open.
This is similar to what Hegesippus says in EH 2.23:
Now some of the seven sects, which existed among the people and which have been mentioned by me in the Memoirs, asked him [James], ‘What is the gate of Jesus?’ and he replied that he was the Saviour. On account of these words some believed that Jesus is the Christ.
Thou just one, in whom we ought all to have confidence, forasmuch as the people are led astray after Jesus, the crucified one, declare to us, what is the gate of Jesus.’ And he answered with a loud voice, ‘Why do ye ask me concerning Jesus, the Son of Man?'
And, in my view, this also seems similar to James 5:8-9:
You too, be patient and stand firm, because the Lord’s coming is near. Don’t grumble against one another, brothers and sisters, or you will be judged. The Judge is standing at the door!
Rev. 3:11-12:
I am coming soon. Hold on to what you have, so that no one will take your crown. The one who is victorious I will make a pillar [stylon; στῦλον] in the temple of my God.
Gal. 2:9:
James, Cephas and John, those esteemed as pillars [styloi; στῦλοι] ...
Rev. 3:9:
I will make those who are of the synagogue of Satan, who claim to be Jews though they are not, but are liars--I will make them come and fall down at your feet and acknowledge that I have loved you.
Hegesippus in EH 2.23:
On account of these words [of James] some [of the other sects] believed that Jesus is the Christ. But the sects mentioned above did not believe either in a resurrection or in one’s coming to give to every man according to his works. But as many as believed did so on account of James ... And when many were fully convinced and gloried in the testimony of James, and said, ‘Hosanna to the Son of David,’ these same Scribes and Pharisees said again to one another, ‘We have done badly in supplying such testimony to Jesus. But let us go up and throw him down, in order that they may be afraid to believe him.’ And they cried out, saying, ‘Oh! oh! the just man is also in error.’
Rev. 3:20:
Nevertheless, I have this against you: You tolerate that woman Jezebel, who calls herself a prophet. By her teaching she misleads my servants into sexual immorality and the eating of food sacrificed to idols.
Rev. 3:23:
Then all the churches will know that I am he who searches hearts and minds, and I will repay each of you according to your deeds.
Hegesippus in EH 2.23:
But the sects mentioned above did not believe either in a resurrection or in one’s coming to give to every man according to his works. But as many as believed did so on account of James.
And in EH 3.20:
And when they [the grandsons of Jude] were asked concerning Christ and his kingdom, of what sort it was and where and when it was to appear, they answered that it was not a temporal nor an earthly kingdom, but a heavenly and angelic one, which would appear at the end of the world, when he should come in glory to judge the quick and the dead, and to give unto every one according to his works.
Rev. 4:1:
After this I looked, and there before me was a door standing open in heaven.
Rev. 4:2:
...and there before me was a throne in heaven with someone sitting on it.
EH 2.23:
‘Thou just one, in whom we ought all to have confidence, forasmuch as the people are led astray after Jesus, the crucified one, declare to us, what is the gate of Jesus.’ And he answered with a loud voice, ‘Why do ye ask me concerning Jesus, the Son of Man? He himself sitteth in heaven at the right hand of the great Power, and is about to come upon the clouds of heaven.’
Compare this with the orthodox version in Acts 7:55-56, where Stephen says that Jesus is
standing in heaven rather than sitting:
But Stephen, full of the Holy Spirit, looked up to heaven and saw the glory of God, and Jesus standing at the right hand of God. “Look,” he said, “I see heaven open and the Son of Man standing at the right hand of God.”
And those are just the first four chapters. So Revelation does seem very Jewish Christian to me.
You know in spite of all you gained, you still have to stand out in the pouring rain.