This is a combination of the first Erzya-language translation of the Gospel in 1821 and the subsequent 1827 publication of the remaining New Testament text.
If you use this data set in an academic publication, I would be ever so grateful if you cited it as follows:
Olga Erina & Jack Rueter & Rimma Averyanova. (2019, April 5). Erzya New Testament 1821--1827 (Version v0.5) https://zenodo.org/badge/179615949.svg