I don't see why you are connecting Matthew 23 to Rev 17 (and perhaps Rev 18). How do you connect these?
Because the subject matter is the same. Mat 23 was all about the "woes" to the Scribes and Pharisees. In fact, Jesus uses the phrase, "woe to you' EIGHT times in the passage. Seven times He says, "“
Woe to you, scribes and Pharisees, hypocrites!" Jesus has zeroed in on them and nobody else is in focus.
Much of the material in Matthew 23 pertains to all generations. It pertains to the generation of the time of Jesus. It is relevant to generations which followed...it is relevant to today's generations, and tomorrow's.
Actually almost none of it pertains to us other than as use as an object lesson.
We are but scribes and pharisees, are we not?
Certainly not!! At least I don't consider myself one of them. I would never support putting my Lord and Savior on a cross, but speak for yourself if you feel that way. Count me out.
Rev 17 pertains to a period of time to the future of when John wrote it.
Correct and John wrote it during the reign of Nero. So yes, it was future to him but as we see at the start of Revelation 1, it was in his very near future. In Rev 22, Christ concludes that same theme. Rev 22: 20
"He who testifies to these things says, “Surely I am coming quickly.” Amen. Even so, come, Lord Jesus!
And man oh man did He ever come. Wiped that wicked city off the face of the earth.
Rev 17 pertains to a period of time to the future of when John wrote it.
Who is she?
When is she?
where is she?
how long of a time span does she last?
The Harlot? "She was the scribes and pharisees, of course. They were the ones riding the beast, "ROME." The Beast supported the Harlot did it not? The wicked scribes and pharisees could not have stayed in power, tormenting and killing Christ and His followers without the support of Rome. They declared Caesar their King and paid tribute to him in exchange they were allowed to keep power and rule over Israel.
When? A long time. From at least Herod up and until 70 AD when every last Jewish priest in Jerusalem was killed by Titus.
Where? All over the Roman Empire in the Jewish synagogues but obviously their head quarters was in Jerusalem.
Don't confuse the Harlot with the Tribulation. The Tribulation lasted 3.5 years from when Rome first surrounded the city until the end. The "great tribulation" meaning the worst part lasted but 5 months when Titus arrived and choked her out. This was the fifth trumpet.