A number of different repetitive prayer formulas have been recorded in the history of Eastern Orthodox monasticism (e.g. the Prayer of St Ioannikios ) Sometimes the Jesus Prayer is alternated with an invocation to the Mother of God "Most Holy Theotokos, save us." In such a case, the practitioner repeats, for example, 100 Jesus Prayers and then 10 invocations of the Mother of God.
Variations on the theme
Lord Jesus Christ, Son of the Living God, have mercy on me, a sinner. (this is the most common for of the prayer LK 18: 9-14).
Lord Jesus Christ, Son of God, have mercy on us. (rule of St John Chrysostom)
Lord have mercy.
Jesus have mercy.
Christ have mercy.
Son of God have mercy.
Most Holy Trinity have mercy.