Jehovist

Yah"wist (?), n. Also Jah"vist (?), Jah"wist, older Je*ho"vist. The author of the passages of the Old Testament, esp. those of the Hexateuch, in which God is styled Yahweh, or Jehovah; the author of the Yahwistic, or Jehovistic, Prophetic Document (J); also, the document itself.

Je*ho"vist (?), n. 1. One who maintains that the vowel points of the word Jehovah, in Hebrew, are the proper vowels of that word; -- opposed to adonist.

2. The writer of the passages of the Old Testament, especially those of the Pentateuch, in which the Supreme Being is styled Jehovah. See Elohist.

The characteristic manner of the Jehovist differs from that of his predecessor [the Elohist]. He is fuller and freer in his descriptions; more reflective in his assignment of motives and causes; more artificial in mode of narration.
S. Davidson.