What is the essential teaching of the new covenant?

Answer

"For this is the covenant that I will make with the house of Israel after those days, says the Lord; I will put
My laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to
Me a people." Heb. 8: 10.

Of whom did Moses and the prophets write?
How was the earth itself affected by Adam's sin ?
How was Christ's first advent to be heralded?
What final call to come out of Babylon is to go forth?
Under whose influence are the nations to be assembled?
What assurance has God given to believers?
What did John see concerning this city?

Questions & Answers are from the book Bible Readings for the Home Circle