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.

14. What beings of a higher order than man desire to study the truths revealed in the gospel of Christ?
When was this time of reformation?
What requirement was made by these teachers from Judea concerning the ceremonial law?
What did John say was to be the end of this beast?
What will this prophet do when he comes?
How is their watch-care over God's people expressed?
What did Paul say regarding our duty to the poor?

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