Aretalogy is a form of sacred biography where a deity

Deity

A deity is a recognized preternatural or supernatural immortal being, who may be thought of as holy, divine, or sacred, held in high regard, and respected by believers....

's attributes are listed, in the form of poem or text, in the first person.

Usage

Often each line starts with the standard "I am …". Usually, aretalogies are self praising. They are found in the sacred texts of later Egypt, Mesopotamia and in Greco-Roman

Religion in ancient Rome

Religion in ancient Rome encompassed the religious beliefs and cult practices regarded by the Romans as indigenous and central to their identity as a people, as well as the various and many cults imported from other peoples brought under Roman rule. Romans thus offered cult to innumerable deities...

 times. Aretalogies of Isis would be recited everyday by an Aretologist who would have to memorise a huge list of attributes which he/she would have to recite.(Priests and priestesses of Isis had equal rank in the temple.) The aretalogies of ancient Egypt provide some the most complete information extant about their deities. Aretalogies are found as early as the Coffin Texts

Coffin Texts

The Coffin Texts are a collection of ancient Egyptian funerary spells written on coffins beginning in the First Intermediate Period. The texts are derived in part from the earlier pyramid texts, reserved for royal use only, but they contain substantial new material related to everyday desires that...

. In a Ptolemeic

Ptolemaic dynasty

The Ptolemaic dynasty, was a Macedonian Greek royal family which ruled the Ptolemaic Empire in Egypt during the Hellenistic period. Their rule lasted for 275 years, from 305 BC to 30 BC...

 aretalogy, Aset (Isis)

Isis

Isis or in original more likely Aset is a goddess in Ancient Egyptian religious beliefs, whose worship spread throughout the Greco-Roman world. She was worshipped as the ideal mother and wife as well as the matron of nature and magic...

says about herself:

I am Isis, ruler of every land.

I was taught by Hermes (Thoth) and with Hermes devised letters, both hieroglyphic and demotic, that all might not be written with the same.

I gave laws to mankind and ordained what no one can change.