9 Wherefore let us stay at this point our discourse concerning the questions, and in the meanwhile let us retain with accuracy what has been revealed to us; as, for instance, why he mentioned David first; wherefore he called the book, “a book of the generation;” on what account he said, “of Jesus Christ;” how the birth is common and not common; whence it was that Mary was shown to be from David; and wherefore Joseph's genealogy is traced, while her ancestors are passed over in silence.
For if you retain these things, you will the more encourage us with respect to what is to come; but if you reject and cast them from your mind, we shall be the more backward as to the rest. Just as no husbandman would care to pay attention to a soil which had destroyed the former seed.
Wherefore I entreat you to revolve these things. For from taking thought concerning such matters, there springs in the soul some great good, tending unto salvation. For by these meditations we shall be able to please God Himself; and our mouths will be pure from insults, and filthy talking, and reviling, while they are exercising themselves in spiritual sayings; and we shall be formidable to the devils, while arming our tongue with such words; and we shall draw unto ourselves God's grace the more, and it will render our eye more piercing. For indeed both eyes and mouth and hearing He set in us to this intent, that all our members may serve Him, that we may speak His words, and do His deeds, that we may sing unto Him continual hymns, that we may offer up sacrifices of thanksgiving, and by these may thoroughly purify our consciences.
For as a body will be more in health when enjoying the benefits of a pure air, even so will a soul be more endued with practical wisdom when nourished in such exercises as these. Do you see not even the eyes of the body, that when they abide in smoke they are always weeping; but when they are in clear air, and in a meadow, and in fountains and gardens, they become more quicksighted and more healthy? Like this is the soul's eye also, for should it feed in the meadow of spiritual oracles, it will be clear and piercing, and quick of sight; but should it depart into the smoke of the things of this life, it will weep without end, and wail both now and hereafter. For indeed the things of this life are like smoke. On this account also one has said, “My days have failed like smoke.” He indeed was referring to their shortness of duration, and to their unsubstantial nature, but I would say that we should take what is said, not in this sense alone, but also as to their turbid character.
For nothing does so hurt and dim the eye of the soul as the crowd of worldly anxieties and the swarm of desires. For these are the wood that feeds this smoke. And as fire, when it lays hold of any damp and saturated fuel, kindles much smoke; so likewise this desire, so vehement and burning, when it lays hold of a soul that is (so to speak) damp and dissolute, produces also in its way abundance of smoke. For this cause there is need of the dew of the Spirit, and of that air, that it may extinguish the fire, and scatter the smoke, and give wings to our thoughts. For it cannot, it cannot be that one weighed down with so great evils should soar up to heaven; it is well if being without impediment we can cleave our way there; or rather it is not possible even so, unless we obtain the wing of the Spirit.
Now if there be need both of an unencumbered mind, and of spiritual grace, that we may mount up to that height; what if there be none of these things, but we draw to ourselves whatever is opposite to them, even a satanical weight? How shall we be able to soar upwards, when dragged down by so great a load? For indeed, should any one attempt to weigh our words as it were in just balances; in ten thousand talents of worldly talk he will scarcely find an hundred pence of spiritual words, or rather, I should say, not even ten farthings. Is it not then a disgrace, and an extreme mockery, that if we have a servant, we make use of him for the most part in things necessary, but being possessed of a tongue, we do not deal with our member so well even as with a slave, but on the contrary make use of it for things unprofitable, and mere makeweights? And would it were only for makeweights: but now it is for what are contrary and hurtful and in no respect advantageous to us. For if the things that we spoke were profitable to us, they would assuredly be also pleasing to God. But as it is, whatever the devil may suggest, we speak it all, now laughing, and now speaking wittily; now cursing and insulting, and now swearing, lying, and taking false oaths; now murmuring, and now making vain babblings, and talking trifles more than old wives; uttering all things that are of no concern to us.
For, tell me, who of you that stand here, if he were required, could repeat one Psalm, or any other portion of the divine Scriptures? There is not one.
And it is not this only that is the grievous thing, but that while you have become so backward with respect to things spiritual, yet in regard of what belongs to Satan you are more vehement than fire. Thus should any one be minded to ask of you songs of devils and impure effeminate melodies, he will find many that know these perfectly, and repeat them with much pleasure.
Source: Homilies on the Gospel of St. Matthew (New Advent)