Near as I can determine, the oldest list of the names of the seven archangels is to be found in the Book of Enoch, written around 300 BCE. This book is regarded as canonical by the Ethiopian Orthodox Church and Eritrean Orthodox Church, but no other Christian group. It is however, quoted in the New Testament (Jude 1:14-15).
Angels aren’t named very often in the Hebrew Bible: Lucifer is mentioned in Isaiah 14:3-5, Isaiah 14:12-15. Michael (Daniel 10:13) and Gabriel (Daniel 8:15-17) are mentioned in passages in which Daniel is having a vision and sees someone ‘like a man’ (doesn’t say “angels”, but what else?).
In the New Testament only Michael is mentioned by name:
“When the archangel Michael, contending with the devil, was disputing about the body of Moses, he did not presume to pronounce a blasphemous judgment, but said, ‘The Lord rebuke you’” (Jude 1:9)
Chapter 20 of the Book of Enoch consists of a straightforward list of their names:
1. And these are the names of the holy angels who watch.
2. Uriel, one of the holy angels, who is over the world and over Tartarus.
3. Raphael, one of the holy angels, who is over the spirits of men.
4. Raguel, one of the holy angels who takes vengeance on the world of the luminaries.
5. Michael, one of the holy angels, to wit, he that is set over the best part of mankind and over chaos.
6. Saraqael, one of the holy angels, who is set over the spirits, who sin in the spirit.
7. Gabriel, one of the holy angels, who is over Paradise and the serpents and the Cherubim.
8. Remiel, one of the holy angels, whom God set over those who rise.
Scholars are divided whether the Book of Enoch was originally written in Ethiopic or in Aramaic. We have complete copies of it in Ethiopic, but only fragments of it in Aramaic. None of the Aramaic fragments covers chapter 20 (as far as I am able to determine).
So it looks like the Ethiopic names from Enoch chapter 20 are as old a complete list as we are going to find. Here is chapter 20 from two different editions:
From these sources we can determine the archangelic names in Ethiopic and their Ethiopic gematria values:
|Ethiopic Name||Transliterated / (English-ized)||Ethiopic Gematria Value||Base 7|
Which, by musical gematria, gives us the following musical gestures for the archangelic names:
Mercer, Samuel: Ethiopic Grammer, Oxford 1920 (at Amazon)
Chaine, Marius: Grammaire Éthiopienne, Beyrouth 1907 (at Amazon)