A Sheep is not a Goat is not a Sheep

"These illustrations all come from within nature.  A sheep is a natural animal, as is a goat.  When a man is regenerated, he is not transformed into some kind of angelic demigod from another realm.  No, he is changed into a man, and the material out of which God performed this miracle was the remains of a man, the ruins of a man.  This is not a change from nature into grace; it is a change from broken nature to restored nature, and the change is accomplished by grace.  We are not changed into grace, we are transformed by grace." - Wilson, AC, p140-1.