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.

How was the earth itself affected by Adam's sin ?
At what cost did even He learn the lesson of obedience?
28. BY what miracle and phenomenon in nature did God indicate the character of the deed which was being committed?
Who opens the judgment and presides over it?
Why are they demanded now?
Who witnessed the laying of the foundations of the earth?
Why are its gates not to be closed?

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