These chapters are chronological and take us from the final Day of Yom Teruah through the 10 days of "awe" to the Day of Yahuwah, Yom Kippur, when Messiah descends with the wrath of His Father.
Chapter 2 of II Thessalonians is a major chapter for Christian end-time teaching. It contains so many details of prophetic importance pointng to the times before Messiah comes. It expands Messiah's teaching in Matthew 24, Mark 13, and Luke 21
We're back in the days of the early assemblies, same problems from the same group of people, same tests and persecution, same call for unity in the love of Messiah