Abiathar and Sidonia were a legendary Jewish priest of Mtzkheta and his daughter. Abiathar is said to have been the first person Saint Nino

Saint Nino

Saint Nino , ), Equal to the Apostles in and the Enlightener of Georgia, was a woman who preached Christianity in Georgia....

 converted to Christianity

Christianity

Christianity is a monotheistic religion based on the life and teachings of Jesus as presented in canonical gospels and other New Testament writings...

. An apocryphal account of the life and miracles of Saint Nino is attributed to them. They are regarded as saint

Saint

A saint is a holy person. In various religions, saints are people who are believed to have exceptional holiness.In Christian usage, "saint" refers to any believer who is "in Christ", and in whom Christ dwells, whether in heaven or in earth...

s in the church in Georgia

Georgia (country)

Georgia is a sovereign state in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded to the west by the Black Sea, to the north by Russia, to the southwest by Turkey, to the south by Armenia, and to the southeast by Azerbaijan. The capital of...

, and are mentioned in Bessarion's The Saints of Georgia

The Saints of Georgia

The Saints of Georgia is a book of hagiography published by Bessarion. It is a primary source of biographies of saints, including the following:*Abiathar and Sidonia*Abibo Joseph-References:...

and the Menologium der Orthodox-Katholischen Kirche des Morgenlandes

Menologium der Orthodox-Katholischen Kirche des Morgenlandes

Menologium der Orthodox-Katholischen Kirche des Morgenlandes is a volume of hagiography by Probst Mayhew, published in Berlin in 1900. It is the sole primary collected source of several lives of saints. The individuals included in the book include:...

. Their feast day is celebrated on October 1 in Georgia.