If the kingdom of God is within us and that is a kingdom of justice, of peace, and of joy then whoever remains with these virtues is certainly in the kingdom of God. By contrast, all who deal in unrighteousness, in discord, and in death-bearing gloom have taken their stand in the kingdom of the devil, in hell and in lifelessness. It is by these tokens that the kingdom of God or of the devil is recognized.
John Cassian...the souls of the dead [are] not deprived of their intellectual faculties but... they also are not lacking in feelings such as hope and sadness, joy and fear. They already have a foretaste of what is in store for them after the general judgment. Nor does it happen, as some unbelievers would hold, that upon leaving this world they are turned to nothing. Actually they live more intensely and they concentrate more on the praises of God.
John CassianIt is not our free will but 'it is the Lord who sets the captive free' (Ps. 145:7). It is not our own virtue but 'it is the Lord who lifts up those who were laid low' (Ps. 145:8). It is not application to reading but 'it is the Lord who gives light to the blind' (Ps. 145:8). It is not our cautiousness but 'it is the Lord who protects the stranger' (Ps. 145:9). It is not our endurance but 'it is the Lord who raises or gives support to the fallen' (Ps. 144:14).
John CassianEverything we do, our every objective, must be undertaken for the sake of... purity of heart... we must practice the reading of the Scripture, together with all the other virtuous activities... to hold our hearts free of the harm of every dangerous passion and in order to rise step by step to the high point of love.
John Cassian...when we abandon visible riches... it is strange goods and not our own that we are leaving. And this is so even if we boast that we acquired them through our own efforts or that they were passed on to us as an inheritance. I say nothing is ours except what is in our hearts, what belongs to our souls, what cannot be taken away by anyone.
John CassianWe are often indifferent to our brethren who are distressed or upset, on the grounds that they are in this state through no fault of ours. The Doctor of souls, however, wishing to root out the soul's excuses from the heart, tells us to leave our gift and to be reconciled not only if we happen to be upset by our brother, but also if he is upset by us, whether justly or unjustly; only when we have healed the breach through our apology should we offer our gift.
John Cassian