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 is one evidence of this change from death to life?
In all we do, whose glory should we have in view?
Through whom was a restoration of the lost dominion promised to Abraham?
How, according to Luke, did Christ answer this question?
What is the chief occupation of Satan and his angels?
What is charity called?
By what title does the Psalmist address God?

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