Webster's Revised Unabridged Dictionary · 1913

Oracle

Oracle , noun

[French, from Latin oraculum, from orare to speak, utter, pray, from os, oris, mouth. See Oral.]

1.
The answer of a god, or some person reputed to be a god, to an inquiry respecting some affair or future event, as the success of an enterprise or battle.
Whatso'er she saith, for oracles must stand. — Drayton
2.
The deity who was supposed to give the answer; also, the place where it was given.
The oracles are dumb; No voice or hideous hum Runs through the arched roof in words deceiving. — Milton
3.
The communications, revelations, or messages delivered by God to the prophets; also, the entire sacred Scriptures -- usually in the plural.
The first principles of the oracles of God. — Heb. v. 12
4.
(Jewish Antiquities) The sanctuary, or Most Holy place in the temple; also, the temple itself. — 1 Kings vi. 19
Siloa's brook, that flow'd Fast by the oracle of God. — Milton
5.
One who communicates an oracle{1} or divine command; an angel; a prophet.
God hath now sent his living oracle Into the world to teach his final will. — Milton
6.
Any person reputed uncommonly wise; one whose decisions are regarded as of great authority; as, a literary oracle.
Oracles of mode. — Tennyson
The country rectors... thought him an oracle on points of learning. — Macaulay
7.
A wise pronouncement or decision considered as of great authority.

Oracle , intransitive verb

To utter oracles. [Obsolete]