the oak: the broad, hard, long lived tree of the hills, named as a kind of tree rather than as one famous landmark
This is the plain Hebrew word for an oak. When the Bible names a big hardwood tree by its kind rather than by its fame, this is the word it reaches for, and twice it sets the oak right beside the terebinth (אֵלָה) in the same line, which is how we know the writers heard two different trees and not one vague large one.
Across its eight appearances the oak turns up doing four different jobs:
- it marks a grave, since Rebekah's nurse is buried under the oak below Bethel and the spot is afterwards named for the tree
- it gives shade for worship on the hilltops, standing there beside the poplar and the terebinth
- it supplies timber, chosen by a craftsman for a carved image and by the shipwrights of Tyre for their oars
- it serves as the picture of strength in poetry, where the oaks of Bashan stand next to the cedars (אֶרֶז) of Lebanon and are cut down along with them
Half of the appearances are plural, and three of those are the same phrase, the oaks of Bashan: the wooded highland east of the Jordan whose great trees were proverbial. In the prophets those trees are almost always on the point of falling, which makes them a standing image of anything tall and proud that God means to bring low. Isaiah turns the image around once: when the oak is felled the stump is still alive, and that surviving stump is Israel.
One difficulty belongs to the word itself. In a Hebrew text written without vowel marks it looks identical to another word that names one single famous tree, the kind Abraham camped beside (אֵלוֹן), and only the vowels added by later scribes keep the two apart. Scholars also differ over how tightly the tree can be identified: most reference works say "oak," while a serious minority holds that the word is a looser term for any big, strong tree.