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.

After bringing Him to the place of crucifixion, what drink was offered Christ to stupefy Him?
How far-reaching is God's ability to reveal the future?
What does Malachi say of those that fear the Lord?
What great separation will then take place?
Under what striking symbol was all this foretold?
7. Near the close of the three and one-half years drought in Israel, brought about as a judgment did King Ahab bring against Elijah?
How does God regard one who abandons his faith?

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