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 what other way is God's love sometimes shown?
22. After being united with Christ in the likeness of His death and resurrection, what should the believer do?
Of what were the works of Abraham an evidence?
For whom has a book of remembrance been written?
While drinking the wine, what gods did they honor?
7. What, according to Matthew's account, did Christ say were to he the signs in the sun, moon, and stars?
What were these martyrs represented as doing?

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