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.

To what parts of the ancient armour is faith compared?
What question was asked in the hearing of the prophet?
What reason is given in the fourth commandment for keeping the Sabbath day holy?
When the state enacts religious laws, what is effected?
What has the Lord promised to be to the oppressed?
What delights and pleasures await the child of God?
In what scripture are Christians recognized as Israel?

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