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.

By whom were the heaven and the earth created?
Through whom will Abraham receive the promise of the future inheritance?
How did some of the believers at Ephesus testify to the sincerity of the confession of their sins?
For what did Christ reprove the Pharisees?
What does the Bible present as the object of signing or sealing a document?
Who did he say he was?
Who constitute the true Israel, or seed of Abraham?

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