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 view of God's great love to us, what ought we to do?
How had they done this?
How long did he continue this work there?
What was to he inflicted upon one of the heads of this beast?
What petition was made to the emperor by a church convention of bishops in AD 401?
What fate awaits those who turn a deaf ear to the poor?
How did Job treat the poor?

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