St. Simeon the New Theologian
The whole warfare of the demons against us is waged with the one purpose of alienating those who obey them from the glory of God and the grace of the Holy Spirit. But, as I see it, we have already deprived ourselves of such a gift before they even attack us, because we have forsaken the commandments of God and have not been eager to seek Him with all our soul. Had we sought Him we should not have lived so idly and carelessly! Had we been concerned for the things of heaven we should not have shown such great eagerness for the things of earth. Had our thoughts been on things incorruptible we should not have gaped greedily after the things that are transitory and corruptible. Had we striven for things eternal we should not thus have pursued things temporal. Had we loved God we should not thus have turned away from those who guide us to Him. Had we sought to acquire virtues we would not have abhorred the teachers of virtues. Had we gladly embraced fasting we should not have complained of the lack of food and drink. Had we fought to gain control over our passions we should not have given ourselves unrestrainedly to pleasures. Had we a right and firm faith we should not have performed the works of faithlessness…Had we been found worthy to attain true love we should have known God.