Gen 4:3-5, And in the process of time it came to pass that Cain brought an OFFERING OF THE FRUIT OF THE GROUND TO THE LORD. ABEL ALSO BROUGHT OF THE FIRSTBORN OF HIS FLOCK AND OF THEIR FAT. And the LORD respected Abel and his offering, but He did not respect Cain and his offering…
Heb 11:4, BY FAITH ABEL OFFERED TO GOD A MORE EXCELLENT SACRIFICE THAN CAIN..
1Jn 3:12, not as Cain who was of the wicked one and murdered his brother. AND WHY DID HE MURDER HIM? BECAUSE HIS WORKS WERE EVIL AND HIS BROTHER’S RIGHTEOUS.
Scripture doesn’t say if this was a sin offering, because only the shedding of blood can cover sin! An offering of grain was acceptable “Num 18:12”, Yet Cain didn’t offer it up in faith, but reluctantly!
Gen 4:7, IF YOU DO WELL, WILL YOU NOT BE ACCEPTED? AND IF YOU DO NOT DO WELL, SIN LIES AT THE DOOR. AND ITS DESIRE IS FOR YOU, BUT YOU SHOULD RULE OVER IT.”
Some, ignorantly say, “DO WHAT’S IN YOUR HEART” without knowing that our hearts are desperately wicked running for a chance to do evil! But, Scripture says “HE WHO TRUSTS IN HIS OWN HEART IS A FOOL, BUT WHOEVER WALKS WISELY WILL BE DELIVERED”,
PRO 28:26.