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 receiving the Son what do we have in Him?
Upon what basis does the reward come to one who works?
How may we determine the truthfulness of any doctrine ?
What reason is assigned for the fall of Babylon?
What effect did this answer have upon the Jews?
10. Because the disciples plucked a few ears of corn on the Sabbath day to satisfy hunger, what accusation did the Pharisees make against them to Christ?
How does the Apostle Peter close his second epistle?

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