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.

How fully does the Lord pardon when one repents?
How did Christ's death affect the ceremonial law?
After resting on the seventh day, what did God do?
What statement of the redeemed shows that they will remember God's creative power?
6. What would have been the result to the dead had not Christ procured their release from the grave?
What encouragement does Jesus give us to meet cheerfully the troubles and trials of life?
How did man lose his dominion?

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