Saint John the Stranger (Ioannes o Xenos) was a hermit on the island of Crete who founder a number of monastic establishments there. He reposed in 1031 and is commemorated in the Orthodox Church on September 20. Below is his testament that has been handed down to us. The attached source link at the bottom provides more information on this text, the translation and on Saint John in general.
I, Ioannes the monk and the hermit, known as xenos, commanded.
1. Being a source of incorruption our God created man at first in incorruption; having seen him, He gave <him the possibility> and He settled <him> at the life-giving place. So, due to the deceit and the advice of the evil-minded serpent, the forefather having not observed the command, was condemned to death. And then, O brethren, there is no man who will live and will not face death. Thus, I too, the lowly monk and known as xenos, having been laid down on a bed by sickness and expecting the finality of death, look, how I have arranged and manifestly set out everything regarding me, and what holy God through his oikonomia (dispensation) revealed to me; and this is how matters regarding me stand. I was born of rich parents <coming> from a village called Siva; and having been conceived by them, I came out of the maternal womb, longing for the solitary life from a young age. Thereafter, from mountain to mountain and in desert places wandering, being maltreated and harassed by the icy cold, I spent considerable time following the command (of God) and being burnt up by the burning heat of the sun and the frost of the winter. And having dwelt and lived together with the wild beasts and animals, I came as far as the mountain of Lithines, which is called Raxos. And in that place, having remained a considerable number of days and having traversed all over the mountain and having found a dense and trackless forest, I found also at that same place a cave, in which when I entered it, I found two monuments, one on the north side and the other on the south. Having gazed at them, I came out of the cave thinking to myself, what are these? And as I walked for a little, a voice came down to me from above calling me by name and commanding me in these words: "Ioannes, Ioannes, Ioannes, these that you saw here, are two monuments of Eutychios and Eutychianos, and in this place you are destined to raise a sacred and holy naos (temple) in their name". And having heard these, I stayed at the place; and having taken a great deal of trouble and given myself with my whole soul, I began to remove from the ground the trees and undergrowth and to clean the aforesaid monuments; and having done these things after many days, I raised a sacred and holy naos of Saints Eutychios and Eutychianos.