This canon, which is to be found the Greek Great Book of Needs, is also chanted at Tuesday Compline in the week of tone six of the Octoechos. Whilst we are having confessions during Saturday Compline, this may be pertinent to be chanted at that time, and would certainly be valuable for parishioners as they prepare for confession and Holy Communion. In the Euchologion (Book of Needs) it is followed by a prayer of absolution by St John of Damascus, making it clear that it is intended for use in this context.