[1] The quotations were embedded in a polemic to point out inconsistencies in the beliefs and practices of a Jewish Christian sect known as the Ebionites relative to Nicene orthodoxy.
[5] There is a similarity between the gospel and a source document contained within the Clementine Recognitions (1.27–71), conventionally referred to by scholars as the Ascents of James, with respect to the command to abolish the Jewish sacrifices.
[n 14][n 15] The various, sometimes conflicting, sources of information were combined to point out inconsistencies in Ebionite beliefs and practices relative to Nicene orthodoxy,[n 16] possibly to serve, indirectly, as a polemic against the Arians of his time.
[4][n 18] Its place of origin is uncertain; one speculation is that it was composed in the region east of the Jordan where the Ebionites were said to have been present, according to the accounts of the Church Fathers.
[4] According to scholars Oskar Skarsaune and Glenn Alan Koch, Epiphanius incorporated excerpts from the gospel text at a late stage in the composition of Panarion 30, primarily in chapters 13 and 14.
[n 21][n 22] The translations of Bernhard Pick (1908),[11] with the sequence of four fragments arranged in the order of Vielhauer & Strecker from the beginning of the gospel are as follows: It came to pass in the days of Herod, King of Judaea under the high priest Caiaphas, that John came and baptized with the baptism of repentance in the river Jordan; he is said to be from the tribe of Aaron and a son of Zacharias the priest and of Elizabeth and all went out to him.
[n 24] In the narrative of the baptism of Jesus by John (13.7), the voice of God speaks three times in close parallels to the Gospel of Mark 1:11, Luke 3:22 (Western text-type), and Matthew 3:17, respectively.
This divine election at the time of his baptism is known as an Adoptionist Christology,[n 4][n 35] and it is emphasized by the quotation of Psalm 2:7, as found in the "Western text" of Luke 3:22, "You are my son, this day I have begotten you.
[n 38] His Adoptionist son-ship is characterized by the belief that Jesus was a mere man, who, by virtue of his perfect righteousness, was imbued with the divinity of the eternal Christ through his Baptism in order to carry out the prophetic task for which he had been chosen.
[n 39][n 40] The absence of any reference to a Davidic son-ship in the gospel text suggests that Jesus has been elected to be the end-time prophet, the Chosen One, sent to abolish the Jewish sacrifices.
[n 42][n 43] According to scholars Richard Bauckham and Petri Luomanen, Jesus is understood in this gospel as having come to abolish the sacrifices rather than substituting for them;[16] thus it is unlikely that it contained the same institution of the Eucharist as practiced by Nicene orthodox Christianity.
[n 45] The change in wording of the gospel text from "locust" (akris) to "cake" (egkris) for John the Baptist's diet (13.4) has been interpreted as evidence of Jewish vegetarianism.
Epiphanius gives no indication of concern for vegetarianism in this part of the Gospel text,[9] and it may instead be an allusion to the manna in the wilderness of Exodus 16:31 and Numbers 11:8,[n 48] or, according to scholar Glenn Alan Koch, to 1 Kings 19:6 where Elijah eats cakes.
[n 49] Further evidence has been found in the quotation based on Luke 22:15 (22.4), where the saying has been modified by insertion of the word "flesh" to provide a rationale for vegetarianism.
Due to the close association of this saying with the Clementine literature of the 3rd and 4th century, the earlier practice of vegetarianism by the 2nd-century Ebionites known to Irenaeus has been questioned.
[n 51] The strict vegetarianism of the Ebionites known to Epiphanius may have been a reaction to the cessation of Jewish sacrifices and a safeguard against the consumption of unclean meat in a pagan environment.
Scholar Albertus Klijn established the modern consensus, concluding that the gospel harmony composed in Greek appears to be a distinctive text known only to Epiphanius.
[18] The gospel has a parallel to a quotation in a mid-2nd-century homily known as 2 Clement, suggesting that both may be dependent on a harmonizing tradition from an earlier 2nd century source.
[n 62][21] Based on these similarities, scholars Richard Bauckham and F. Stanley Jones have postulated a direct dependence of the Ascents of James on the Gospel of the Ebionites.
[22] The gospel Epiphanius attributed to the Ebionites is a valuable source of information that provides modern scholars with insights into the distinctive characteristics of a vanished branch of Jewish Christianity.
[n 63] However, scholars disagree on whether the information contained within the seven fragments preserved by Epiphanius accurately reflects the traditions of the second-century Ebionite sect known to Irenaeus, or if their belief system changed, perhaps greatly, over a span of 200 years compared to this early group.
[n 64][23] The Ebionites[n 65][n 66] known to Irenaeus (first mentioned in Adversus Haereses 1.26.2, written around 185) and other Church Fathers prior to Epiphanius were described as a Jewish sect that regarded Jesus as the Messiah but not as divine.
[n 72] This has led to the perpetuation of ideological definitions that fail to take into account the pluriformity of these groups,[26] reflecting differences in geography,[n 73][n 74] time periods in history,[n 75] and ethnicity.