John Cassian

In his own words on John

• John 12:26

  Everyone who lives in this body knows that he must be committed to that special task or ministry to which he has given himself in this life as a participant and a laborer, and he ought not to doubt that in that everlasting age he will also be the partner of him whose servant and companion he now wishes to be, according to what the Lord says, "If anyone serves me, let him follow me, and where I am, there also will my servant be." For just as the kingdom of the devil is gained by deceiving people with vices, so the kingdom of God is possessed in purity of heart and spiritual knowledge by practicing the virtues. And where the kingdom of God is, there without a doubt is eternal life, and where the kingdom of the devil is, there—it is not to be doubted—are death and hell. Whoever is there cannot praise the Lord.

  CONFERENCE 1.14.1-2

• John 17:16

  The Lord speaks to his Father in the Gospel as follows: "They are not of the world, as I am not of the world." … No one can understand the truth and force of this except one who has gone through the trials of what [Jesus] was talking about—one who has been under the teacher of experience. This is someone the eyes of whose soul the Lord has turned away from all things present, so that he no longer considers them as things that will soon pass away but as things that are already over and done with, and he sees them vanish into nothing, like misty smoke.… And so, if we are anxious to attain true perfection, we ought to ensure that we have outwardly with the body made light of parents, home, the riches and pleasures of the world, so that we may also inwardly with the heart forsake all these things and never be drawn back by any desires to what we have forsaken.

  CONFERENCE 1.7.2, 4-5

• John 20:28

  Thomas, when he touched the flesh, believed that he had touched God, saying, "My Lord and my God." For they all confessed but one Christ, so as not to make him two. Do you therefore believe him? And do you believe in such a way that Jesus Christ the Lord of all, both Only Begotten and firstborn, is both creator of all things and preserver of humanity and that the same person is first the framer of the whole world and afterward redeemer of humankind?

  ON THE INCARNATION OF THE LORD AGAINST NESTORIUS 6.19