CHAPTER TWO "YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF" ARTICLE 9 THE NINTH COMMANDMENT You shall not covet your neighbor's house; you shall not covet your neighbor's wife, or his manservant, or his maidservant, or his ox, or his ass, or anything that is your neighbor's.299 Every one who looks at a woman lustfully has already committed adultery with her in his heart.300 2514 St. John distinguishes three kinds of covetousness or concupiscence: lust of the flesh, lust of the eyes, and pride of life.301 In the Catholic catechetical tradition, the ninth commandment forbids carnal concupiscence; the tenth forbids coveting another's goods. 2515 Etymologically, "concupiscence" can refer to any intense form of human desire. Christian theology has given it a particular meaning: the movement of the sensitive appetite contrary to the operation of the human reason. The apostle St. Paul identifies it with the rebellion of the "flesh" against the "spirit."302 Concupiscence stems from the d! isobedience of the first sin. It unsettles man's moral faculties and, without being in itself an offense, inclines man to commit sins.303 2516 Because man is a composite being, spirit and body, there already exists a certain tension in him; a certain struggle of tendencies between "spirit" and "flesh" develops. But in fact this struggle belongs to the heritage of sin. It is a consequence of sin and at the same time a confirmation of it. It is part of the daily experience of the spiritual battle: For
... 
