The next step in establishing a foundation requires a look at the OT conditional promise of God to the Israelites. I would request that folks read through Leviticus 26 & Deuteronomy 28 on their own. I will call out a few verses here for specific reference, but the whole chapters are useful to this discussion.
Lev 26: - vs. 3 --> God speaks of an affirmative condition. "If you obey me...I will bless you."
- vs. 12 --> "And I will walk among you, and will be your God, and ye shall be my people." This is a phrase used a number of times in Jeremiah, Ezekiel, and Zechariah, where a good portion of our study will eventually take us. But I really want to take note of this verse in comparison to Rev. 21:3. God makes the same promise to the New Israel as He did to the Old. This takes a step in the point that Revelation is about Old Jerusalem vs. New Jerusalem.
- vs. 14-15 - God speaks of a negative condition. "If you do not obey me...I will destroy you."
- vs. 19 - "...and I will make your heaven as iron, and your earth as brass;" Just pointing this verse out. Take note of it. Ponder it. What does it mean? We'll come back to it later on in the study.
As you read through the chapters, notice the litany of judgment God will rain down on Israel for disobedience. Some are very specific and we see them in Matt. 24 and again in Revelation.
Not getting to deep here, just providing foundational references. I'll connect them soon enough.
In Truth and Love.