5.

The parable exhibits this thought, that the exercise of the faculty of reason has been accorded to each man. Wherefore the prodigal is introduced, demanding from his father his portion, that is, of the state of mind, endowed by reason. For the possession of reason is granted to all, in order to the pursuit of what is good, and the avoidance of what is bad. But many who are furnished by God with this make a bad use of the knowledge that has been given them, and land in the profligacy of evil practices, and wickedly waste the substance of reason,--the eye on disgraceful sights, the tongue on blasphemous words, the smell on foetid licentious excesses of pleasures, the mouth on swinish gluttony, the hands on thefts, the feet on running into plots, the thoughts on impious counsels, the inclinations on indulgence on the love of ease, the mind on brutish pastime. They preserve nothing of the substance of reason unsquandered. Such an one, therefore, Christ represents in the parable,--as a rational creature, with his reason darkened, and asking from the Divine Being what is suitable to reason; then as obtaining from God, and making a wicked use of what had been given, and especially of the benefits of baptism, which had been vouchsafed to him; whence also He calls him a prodigal; and then, after the dissipation of what had been given him, and again his restoration by repentance, [He represents] the love of God shown to him.