Behold me, Lucius; moved by thy prayers, I appear to thee; I, who am Nature, the parent of all things, the mistress of all the elements, the primordial offspring of time, the supreme among Divinities, the queen of departed spirits, the first of the celestials, and the uniform manifestation of the Gods and Goddesses; who govern by my nod the luminous heights of heaven, the salubrious breezes of the ocean, and the anguished silent realms of the shades below: whose one sole divinity the whole orb of the earth venerates under a manifold form, with different rites, and under a variety of appellations. Hence the Phrygians, that primæval race, call me Pessinuntica, the Mother of the Gods; the Aborigines of Attica, Cecropian Minerva; the Cyprians, in their sea-girt isle, Paphian Venus; the arrow-bearing Cretans, Diana Dictynna; the three-tongued Sicilians, Stygian Proserpine; and the Eleusinians, the ancient Goddess Ceres. Some call me Juno, others Bellona, others Hecate, and others Rhamnusia. But those who are illumined by the earliest rays of that divinity, the Sun, when he rises, the Æthopians, the Arii, and the Egyptians, so skilled in ancient learning, worshipping me with ceremonies quite appropriate, call me by my true name, Queen Isis. Behold, then commiserating your calamities, I am come to thy assistance; favoring and propitious I am come. Away, then, with tears; leave your lamentations; cast off all sorrow. Soon, through my providence, shall the day of deliverance shine upon you. Listen, therefore, attentively to these my instructions.

[En adsum tuis commota, Luci, precibus, rerum naturae parens, elementorum omnium domina, saeculorum progenies initialis, summa numinum, regina manium, prima caelitum, deorum dearumque facies uniformis, quae caeli luminosa culmina, maris salubria flamina, inferum deplorata silentia nutibus meis dispenso: cuius numen unicum multiformi specie, ritu vario, nomine multiiugo totus veneratur orbis. Inde primigenii Phryges Pessinuntiam deum Matrem, hinc autochthones Attici Cecropeiam Minervam, illinc fluctuantes Cyprii Paphiam Venerem, Cretes sagittiferi Dictynnam Dianam, Siculi trilingues Stygiam Proserpinam, Eleusini vetustam deam Cererem, Iunonem alii, Bellonam alii, Hecatam isti, Rhamnusiam illi, et qui nascentis dei solis inchoantibus illustrantur radiis Aethiopes utrique priscaque doctrina pollentes Aegyptii, caerimoniis me propriis percolentes, appellant vero nomine reginam Isidem. Adsum tuos miserata casus, adsum favens et propitia. Mitte iam fletus et lamentationes omitte, depelle maerorem: iam tibi providentia mea illucescit dies salutaris. Ergo igitur imperiis istis meis animum intende sollicitum.]

Apuleius (c. 124 - c. 170 AD) Numidian writer, philosopher, rhetorician [Lucius Apuleius Madaurensis]
Metamorphoses [Metamorphoseon] (The Golden Ass) Book 11, ch. 47 [tr. Bohn’s Library (1866)]
    (Source)

Alt. trans. [tr. Adlington (1566)]: "Behold Lucius I am come, thy weeping and prayers hath mooved mee to succour thee. I am she that is the naturall mother of all things, mistresse and governesse of all the Elements, the initiall progeny of worlds, chiefe of powers divine, Queene of heaven! the principall of the Gods celestiall, the light of the goddesses: at my will the planets of the ayre, the wholesome winds of the Seas, and the silences of hell be diposed; my name, my divinity is adored throughout all the world in divers manners, in variable customes and in many names, for the Phrygians call me the mother of the Gods: the Athenians, Minerva: the Cyprians, Venus: the Candians, Diana: the Sicilians Proserpina: the Eleusians, Ceres: some Juno, other Bellona, other Hecate: and principally the Æthiopians which dwell in the Orient, and the Ægyptians which are excellent in all kind of ancient doctrine, and by their proper ceremonies accustome to worship mee, doe call mee Queene Isis. Behold I am come to take pitty of thy fortune and tribulation, behold I am present to favour and ayd thee, leave off thy weeping and lamentation, put away all thy sorrow, for behold the healthfull day which is ordained by my providence, therefore be ready to attend to my commandement."

The original Latin

Sometimes referenced as Chapter 5 within Book 11.