Why is the ninth month called September?
a name of God in the Bible, c.1600, from Hebrew, plural (of majesty?) of Eloh "God," a word of unknown etymology, perhaps an augmentation of El "God," also of unknown origin. Generally taken as singular, the use of this word instead of Yahveh is taken by biblical scholars as an important clue to authorship in the Old Testament, hence Elohist.
(Hebrew: God), the God of Israel in the Old Testament. A plural of majesty, the term Elohim-though sometimes used for other deities, such as the Moabite god Chemosh, the Sidonian goddess Astarte, and also for other majestic beings such as angels, kings, judges (the Old Testament shofetim), and the Messiah-is usually employed in the Old Testament for the one and only God of Israel, whose personal name was revealed to Moses as YHWH, or Yahweh (q.v.). When referring to Yahweh, elohim very often is accompanied by the article ha-, to mean, in combination, "the God," and sometimes with a further identification Elohim hayyim, meaning "the living God."