After many years of monastic exploits, St Moses was ordained deacon. The bishop clothed him in white vestments and said, "Now Abba Moses is entirely white!" The saint replied, "Only outwardly, for God knows that I am still dark within." [I believe they are speaking in a spiritual sense about the purification of the soul]
“Come, my child, and taste of the blessed life of obedience,” Abba Moses told a young man who was ready to follow the monastic life. “In this life, you will find humility, strength, joy, patience, and forbearance. Within it, contrition is born and love blossoms. It aids the good monastic disciple to keep all of the divine commandments throughout his life.”
A certain brother came to the abbot Moses in Scete seeking a word from him. And the old man said to him, "Go and sit in thy cell, and thy cell shall teach thee all things."
The [Elder] was asked, "What is the good of the fasts and watchings which a man imposes on himself?" and he replied, "They make the soul humble. For it is written, "Consider my affliction and my trouble, and forgive all my sins" (Psalm 25:18). So if the soul gives itself all this hardship, God will have mercy on it." The [Elder] was (also) asked, "What should a man do in all the temptations and evil thoughts that come upon him?" The old man said to him, "He should weep and implore the goodness of God to come to his aid, and he will obtain peace if he prays with discernment. For it is written, "With the Lord on my side I do not fear. What can man do to me?" (Psalm 118:6).
“Affliction,” [Abba] Moses once said, “lasts for a short time, while peace is forever, by the grace of God the Word.”