Two religious men were called of God to offer a sacrifice. They both did so earnestly. One sacrifice was accepted and the other was rejected.
Abel offered an animal for his sacrifice. Cain, the ultimate vegetarian, offered fruits and vegetables.
Abel’s altar was messy and bloody. Cain’s altar was beautiful and succulent. God chose the ‘dirty’ altar over the ‘clean’ one.
How did Abel know that blood was the essence of the sacrifice? How did he know that without blood, there would be no remission of sins? He knew this by faith – a revelation.
Cain had no revelation. He worshipped God by his mental deduction – which was wrong.
Sincerity and religiosity without a true understanding of the Word is like a well without water or a cloud without rain.