Christ said: “Therefore you shall be perfect, just as your Father in heaven is perfect” (Matt. 5:48). This means that the Christian, by the grace of God, should continually ascend the steps of spiritual perfection.
By the stages of perfection we certainly do not mean certain fixed points, certain stages in time and place. It is a matter of how the grace of God works in people. God’s uncreated grace is active in the whole of creation and in man. When the grace of God cleanses someone, it is called ‘purifying’ grace, when it illumines it is called ‘illuminating’, and when it glorifies him it is called ‘glorifying’.
We see this in Holy Scripture when it speaks of man’s purification: “Let us cleanse ourselves from all filthiness of the flesh and spirit, perfecting holiness in the fear of God” (2 Cor. 7:1). There is a characteristic passage which shows the stages of spiritual perfection in St Paul’s First Epistle to the Corinthians: “But you were washed, but you were sanctified, but you were justified in the name of the Lord Jesus and by the Spirit of our God” (1 Cor. 6:11). The phrase “you were washed” refers to purification, “you were sanctified” refers to illumination, and “you were justified” refers to glorification.
Christ is the Light and all who are united with Him receive Light and are radiant. Christ said to His Disciples: “You are the light of the world.” (Matt. 5:14) and “Let your light so shine before men, that they may see your good works and glorify your Father in heaven” (Matt. 5:16).
The Holy Fathers move in this context. St Dionysios the Areopagite speaks about purification, illumination and perfection. St Maximos the Confessor talks continuously about practical philosophy, natural theoria and mystical theology. St Symeon the New Theologian writes Practical and Theological Chapters. St Gregory Palamas refers to natural, theological, moral and practical chapters, and so on.




