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.

What reason is given for Gods readiness to forgive sin?
How should the wife relate herself to her husband?
If one professes to abide in Christ, how ought he to walk?
What do the works of God declare?
5. What did He say of those who should break one of the least of God's commandments, and teach men so to do?
Do the Scriptures indicate that there will he violence manifested in this conflict?
What petitions may we confidently expect God to hear?

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