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.

12. What prohibition did God give His chosen people against intermarrying with the heathen nations about them, and why?
To what are the wife and children of the man who fears the Lord likened?
What are children declared to be?
Whom does the Lord chasten?
When asked which commandments, what did Jesus say?
At Corinth what did he do on the Sabbath days?
To whose authority are the angels subject?

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