What does the Bible say about the distinction between Cain and Abel?

In Genesis 4, the distinction between Cain and Abel is preeminently seen through their respective offerings. Abel's offering, which was from the firstlings of his flock, reflects his faith in God's provision and the ultimate sacrifice of Christ. In contrast, Cain brought an offering from the fruit of the ground, relying on his own works. Hebrews 11:4 reiterates this, stating that Abel's offering was accepted because it was made by faith, which signifies that true acceptance before God is only through faith in Christ, the ultimate sacrifice. This distinction underscores the core sovereign grace teaching that our standing with God is not based on our efforts or heritage but solely on Christ's righteousness.