Martyrdom under Shapur II
The persecution in which Aeithalas died belongs to the long campaign waged against Christians in the Persian empire under Shapur II, which particularly targeted the clergy. The synaxarion presents Aeithalas not in isolation but as one of a group of arrested churchmen led by Bishop Akepsimas, who, with the presbyter Joseph, shared the same imprisonment and interrogation.
While Bishop Akepsimas was beheaded, the deacon Aeithalas was, by the tradition, sent to the village of Patrias and stoned to death. The secret burial of his body by fellow Christians and the account of a healing tree growing over his grave are typical of the way the Persian martyr-narratives commemorate the veneration that gathered at such graves.