Do not neglect the practice of the virtues; if you do, your spiritual knowledge will decrease, and when famine occurs you will go down into Egypt (Genesis 41:57, 46:6).
In everything we do, God looks as the aim, whether it is for Him or for some other purpose we act. So, when we wish to do something good, let us have as our aim not to please men but to please God, so as to have our eyes always fixed on Him, doing everything for Him, lest we bear the labor but lose the reward.
Unceasing prayer means to have the mind always turned to God with great love, holding alive our hope in Him, having confidence in Him whatever we are doing and whatever happens to us. That is the attitude that the Apostle had when he wrote: ‘Who shall separate us from the love of Christ? Shall tribulation, or distress, or persecution, or famine, or nakedness, or peril? Neither death nor life nor any other creature shall be able to separate us from the love of God in Christ Jesus.’ [cf. Rom. 8:35-38]
He who has been granted the grace of spiritual knowledge and yet harbors resentment, rancour or hatred for anybody, is like someone who lacerates his eyes with thorns and thistles. Hence knowledge must be accompanied by love.
If we cut off the causes of the passions for only a short while, and occupy ourselves with spiritual contemplation without making it our sole and constant concern, we easily revert to the passions of the flesh, gaining nothing from our labor but theoretical knowledge coupled with conceit. The result is a gradual darkening of this knowledge itself and a complete turning of the intellect towards material things.
There are three things that impel us towards what is holy: natural instincts, angelic powers and probity of intention. Natural instincts impel us when, for example, we do to others what we would wish them to do to us (cf. Luke 6:31), or when we see someone suffering deprivation or in need and naturally feel compassion. Angelic powers impel us when, being ourselves impelled to something worthwhile, we find we are providentially helped and guided. We are impelled by probity of intention when, discriminating between good and evil, we choose the good.
He who speaks dispassionately of his brother's sin does so either to correct him or to benefit another. If he speaks for any other reason, either to the brother himself or to another person, he speaks to abuse him or ridicule him.
When the intellect begins to advance in love for God, the demon of blasphemy starts to tempt it, suggesting thoughts such as no man but only the devil...could invent. He does this out of envy, so that the man of God, in his despair at thinking such thoughts, no longer dares to soar up to God in his accustomed prayer. But the demon does not further his own ends by this means. On the contrary, he makes us more steadfast. For through his attacks and our retaliation we grow more experienced and genuine in our love for God.
When the intellect is pure, sometimes God Himself approaches and teaches it; and sometimes the angelic powers, or the nature of the created things that it contemplates, suggests holy things to it.