God rejected Cain's offering because it was based on his works rather than on faith in God's provision.
God rejected Cain's offering due to its intrinsic reliance on Cain's own works rather than a heart of faith in what God required for atonement. Cain, as a tiller of the ground, brought fruits from his labor, reflecting a works-based approach to righteousness. In Genesis 4:5, it is noted that God had no respect for Cain's offering, indicating that it did not conform to God's command for sacrifice and did not stem from faith. In contrast, Abel's offering was accepted because it was based on faith—he understood that God provided the means for atonement through the blood of a lamb. This narrative emphasizes that God does not accept self-righteous works; instead, He seeks a faith response to His divine provision.
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