How in the hour of death the abbot Agathon, though he knew nothing against himself, yet was not thereby justified.
At the time when the abbot Agathon lay dying his eyes were fixed for three whole days, as if he were in a trance. The brethren who were with him touched him to awaken him, and said, "Father, where are you now?" He replied, "I stand gazing at the God who judges me." Then the brethren said, "Surely you are not afraid." He answered them, "While I was with you on earth, as far as in me lay, I strove to obey the commandments of God. Yet I am but a man, and now I am not sure -- how can I be sure? -- that the things I did were really pleasing in God's sight." The brethren said, "have you no confidence that your deeds were in accordance with the will of God?" He replied, "I have no confidence now that I am standing in the sight of God. Man judges about what is right and wrong. That is one judgment. God also judges what is right and wrong. His judgment is another and different."
Reference: http://www.archive.org/details/wisdomofdesert00birmrich