What the Book Is About
Obviously, On the Incarnation is about the incarnation of Jesus Christ, whom Athanasius consistently refers to as “the Word of God.” This short book is divided into nine chapters. The first three chapters deal with creation and the fall of humanity into sin, and specifically with the dilemma human sinfulness created for God. What is God supposed to do now that his prize creation, the ones upon whom he placed his image, have disobeyed his single command, thereby inviting sin and death into the world? Athanasius puts the problem this way:
In other words, God is too good to allow the devil, through his deception, to destroy humanity and make them nothing (in the same way that both evil and darkness are nothing, the absence of goodness and light, respectively). His goodness cannot allow evil to win. What, then, is he to do?