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 assurance is given concerning the unfailing power of the Creator?
What concrete example makes clear the meaning of this doctrine?
In what miracle did Christ bring to a climax His works on earth?
Where is the law of God written under the new covenant?
What reply did Moses make to the rulers?
Why did Christ, in the parable, reprove the man who hid his talent?
15. Because Solomon asked for wisdom rather than for long life and riches, what besides wisdom did God give him?

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