Jesus quotes 1 Enoch?
This sounds a lot like Enoch 62:5.
"And one portion of them shall look on the other,
And they shall be terrified,
And they shall be downcast of countenance,
And pain shall seize them,
When they see that Son of Man
Sitting on the throne of his glory."
Greg Monette explores this in more detail here:
Matthew 19:28New American Standard Bible: 1995 Update
And Jesus said to them, “Truly I say to you, that you who have followed Me, in the regeneration when the Son of Man will sit on His glorious throne, you also shall sit upon twelve thrones, judging the twelve tribes of Israel.