God requires full obedience, but everyone born naturally since Adam is a sinner. The covenant of grace speaks of the way that God provides an answer to sin and a gracious way to covenant fellowship for sinful humanity. Once Adam failed and sin entered the world, then no one who was descended naturally from Adam could meet the covenantal requirement of perfect obedience for eternal life. Even so, the requirement had not been dissolved. From Genesis 3:15 onward, we see God providing a gracious way of salvation for his people—a covenant of grace with Christ as its representative, or head. All
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