If pride turned some of the angels into demons, then humility can doubtless make angels out of demons. So take heart, all you sinners. St. John Klimakos -The Ladder of Divine Ascent “On Humility”
St. Mark the Ascetic of Sketis said: “Suppose that there are twelve shameful passions. Indulging in any one of them is equivalent to indulging in them all.
“Sin is a blazing fire. The less fuel you give it, the faster it dies down: the more you feed it, the more it bums.” (From the Philokalia, “On the Spiritual Law”)
We who are addicts to sin, when we feel that we have made some progress towards a Christ-like life, must be careful. For one simple passion or sin can catch the others which were drying up and withering away back on fire. And from there we tend to leap head-on into despair and indulgence in sin. Ask any addict how dangerous it can be for them to treat situational triggers lightly, or to “just have one”. POOF! Like a dry forest bed, the spark causes a massive, raging fire to devour us.
And so we must always stand before the Lord, beating our breasts in humility like the Publican “God be gracious! Lord, have mercy! Lord, increase my faith!”