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.

In whom is the gift?
What indwelling Power keeps such from sinning?
To what indignities did Herod subject the Saviour?
What is the duty of every child?
Who was the seed here referred to?
Does the Papacy acknowledge that it has changed the Sabbath?
16. What striking testimony is borne by Neander, the noted church historian, regarding the origin of the Sunday Sabbath?

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