Augustine of Hippo
It is particularly important to emphasize the distinction between the two cities—the one ruled by the devil and the other by Christ, along with their respective sovereigns. As Ecclesiastes declares, "Woe to thee, O earth, when thy king is a youth, and when thy princes eat early! Good to thee, O land, when thy king is of a noble race, and thy princes eat in time, for refreshment, and not for satiety!" (Ecclesiastes 10:16-17). The devil is referred to as a youth, embodying the folly, arrogance, lack of decorum, and other flaws typically associated with that stage of life. In contrast, Christ is depicted as the son of nobility, descending from the holy patriarchs of the free city, from whom He was born in the flesh.
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The princes of the former city indulge prematurely, partaking before their time because they are unable to await the genuine and ultimate joy destined for the future, seeking to grasp the fleeting splendor of the present. Conversely, the princes of Christ's realm exercise patience, anticipating a time of assured happiness. This is indicated by the phrase "not for satiety," highlighting that their hope will not lead to disappointment.