The doctrine of "the covenant of works" arose to prominence in the late sixteenth century and quickly became a regular feature in Reformed thought. Theologians believed that when God first created man he made a covenant with him: all Adam had to do was obey God's command to not eat from the tree of knowledge and obey God's command to be fruitful, multiply, and subdue the earth. The reward for Adam's obedience was profound: eternal life for him and...