How early was this sacrificial system known?

Answer

"By faith Abel offered unto God a more excellent sacrifice than Cain, by which he obtained witness that he
was righteous, God testifying of his gifts." Heb. 11: 4. See Gen. 4: 3-5; 8: 20.

To what parts of the ancient armour is faith compared?
By what means did Christ claim to cast out devils?
How did persecution affect the preaching of the gospel?
What will result if correction is withheld?
2. What did God tell Adam and Eve would he the result if they transgressed, and partook of the forbidden fruit?
From what statement do we learn that these ordinances related to the sacrificial system?
What is our duty toward the outcast and wandering?

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