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.

What will follow this union with Christ in His death and resurrection?
2. What attitude of rivalry was the Papacy, represented by the little horn, to assume toward the Most High?
13. After the accumulation of the sins of the year in this way, what service took place on the tenth day of the seventh month of each year?
Who does God say shall die?
8. After the fall of Western Rome, what power in the East arose to harass and overrun the Roman world, East and West?
When asked if He was a king, what did Christ say?
By what have these things been revealed to us?

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