Then said Barlaam unto him, "Blessed be the God and Father of our Lord Jesus Christ, which according to his abundant mercy hath begotten thee again unto a lively hope, to an inheritance incorruptible and undefiled, that fadeth not away, reserved in heaven in Christ Jesus our Lord by the Holy Ghost; for to-day thou hast been made free from sin, and hast become the servant of God, and hast received the earnest of everlasting life: thou hast left darkness and put on light, being enrolled in the glorious liberty of the children of God. For he saith, `As many as received him, to them gave he power to become the sons of God, even to them that believe on his name.' Wherefore thou art no more a servant, but a son and an heir of God through Jesus Christ in the Holy Ghost. Wherefore, beloved, give diligence that thou mayest be found of him without spot and blameless, working that which is good upon the foundation of faith: for faith without works is dead, as also are works without faith; even as I remember to have told thee afore. Put off therefore now all malice, and hate all the works of the old man, which are corrupt according to the deceitful lusts; and, as new-born babe, desire to drink the reasonable and sincere milk of the virtues, that thou mayest grow thereby, and attain unto the knowledge of the commandments of the Son of God, unto a perfect man, unto the measure of the stature of the fulness of Christ: that thou mayest henceforth be no more a child in mind, tossed to and fro, and carried about on the wild and raging waves of thy passions: or rather in malice be a child, but have thy mind settled and made steadfast toward that which is good, and walk worthy of the vocation wherewith thou wast called, in the keeping of the commandments of the Lord, casting off and putting far from thee the vanity of thy former conversation, henceforth walking not as the Gentiles walk in the vanity of their mind, having their understanding darkened, alienated from the glory of God, in subjection to their lusts and unreasonable affections. But as for thee, even as thou hast approached the living and true God, so walk thou as a child of light; for the fruit of the Spirit is in all goodness and righteousness and truth; and no longer destroy by the works of the old man the new man, which thou hast to-day put on. But day by day renew thyself in righteousness and holiness and truth: for this is possible with every man that willeth, as thou hearest that unto them that believe on his name he hath given power to become the sons of God; so that we can no longer say that the acquiring of virtues is impossible for us, for the road is plain and easy. For, though with respect to the buffeting of the body, it hath been called a strait and narrow way, yet through the hope of future blessings is it desirable and divine for such as walk, not as fools but circumspectly, understanding what the will of God is, clad in the whole armour of God to stand in battle against the wiles of the adversary, and with all prayer and supplication watching thereunto, in all patience and hope. Therefore, even as thou hast heard from me, and been instructed, and hast laid a sure foundation, do thou abound therein, increasing and advancing, and warring the good warfare, holding faith and a good conscience, witnessed by good works, following after righteousness, godliness, faith, charity, patience, meekness, laying hold on eternal life whereunto thou wast called. But remove far from thee all pleasure and lust of the affections, not only in act and operation, but even in the thoughts of thine heart, that thou mayest present thy soul without blemish to God. For not our actions only, but our thoughts also are recorded, and procure us crowns or punishments:
and we know that Christ, with the Father and the Holy Ghost, dwelleth in pure hearts. But, just as smoke driveth away bees, so, we learn, do evil imaginations drive out of us the Holy Spirit's grace. Wherefore take good heed hereto, that thou blot out every imagination of sinful passion from thy soul, and plant good thoughts therein, making thyself a temple of the Holy Ghost.
For from imaginations we come also to actual deeds, and every work, advancing from thought and reflection, catcheth at small beginnings, and then, by small increases, arriveth at great endings.
"Wherefore on no account suffer any evil habit to master thee;but, while it is yet young, pluck the evil root out of thine heart, lest it fasten on and strike root so deep that time and labour be required to uproot it. And the reason that greater sins assault us and get the mastery of our souls is that those which appear to be less, such as wicked thoughts, unseemly words and evil communications, fail to receive proper correction. For as in the case of the body, they that neglect small wounds often bring mortification and death upon themselves, so too with the soul: thus they that overlook little passions and sins bring on greater ones. And the more those greater sins grow on them, the more cloth the soul become accustomed therto and think light of them. For he saith, `When the wicked cometh to the depth of evil things, he thinketh light of them': and finally, like the hog, that delighteth to wallow in mire, the soul, that hath been buried in evil habits, doth not even perceive the stink of her sin, but rather delighteth and rejoiceth therein, cleaving to wickedness as it were good. And even if at last she issue from the mire and come to herself again, she is delivered only by much labour and sweat from the bondage of those sins, to which she hath by evil custom enslaved herself.
"Wherefore with all thy might remove thyself far from every evil thought and fancy, and every sinful custom; and school thyself the rather in virtuous deeds, and form the habit of practising them. For if thou labour but a little therein, and have strength to form the habit, at the last, God helping thee, thou shalt advance without labour. For the habit of virtue, taking its quality from the soul, seeing that it hath some natural kinship therewith and claimeth God for an help-mate, becometh hard to alter and exceeding strong; as thou seest, courage and prudence, temperance and righteousness are hard to alter, being deeply seated habits, qualities and activities of the soul. For if the evil affections, not being natural to us, but attacking us from without, be hard to alter when they become habits, how much harder shall it be to shift virtue, which hath been by nature planted in us by our Maker, and hath him for an help-mate, if so be, through our brief endeavour, it shall have been rooted in habit in the soul?"