One fragmentary source alludes to a journey to the Midianite or Kenite father-in-law of Moses with the Ark (q.v.); another knows of its movements with David and the priest Abiathar (a name closely related to Jether or Jethro; cf.
Hauran and the Moabite hills to Horeb and the Midianite Mountains of the Hebrews, which run into Arabia.
More important is the prominent part played by the Kenite (or Midianite) father-in-law of Moses, whose help and counsel are related in Exod.
Elsewhere J speaks of "Hobab, the son of Reuel the Midianite, Moses' father-inlaw" (Num.
The Midianite oppression (vi.-viii.) is contained in the usual frame (vi.