A certain brother committed an offence in Scete, the camp of the monks, and when a congregation was assembled ‎on this matter, they sent after Abba Moses, but he refused to come; then they sent the priest of the church to him, ‎saying, “Come, for all the people are expecting you,” and he rose up and came.

He took a basket with a hole in it ‎and filled it with sand, and carried it upon his shoulders, and those who went out to meet him said unto him, “What ‎does this mean, O father?” And he said to them, “The sands are my sins which are running down behind me and I ‎cannot see them, and, even, have come to this day to judge shortcomings which are not mine.” And when they heard ‎this they set free that brother and said nothing further to him.‎

[Apophthegmata Patrum]