Unbegotten

Some say that God is unbegotten, or has always existed without needing a creator, but who's to say that the universe itself isn't unbegotten?

Source: tatoeba (10246913)

If care of our descent perplex us most, / Which must be born to certain woe, devour'd / By Death at last—and miserable it is / To be to others cause of misery, / Our own begotten, and of our loins to bring / Into this cursed world a woeful race, / That after wretched life must be at last / Food for so foul a monster—in thy power / It lies, yet ere conception, to prevent / The race unblest, to being yet unbegot.

Source: wiktionary

Thou knowest not how came ye, hence callest thyself unbegotten; certainly knowest not thy beginning, hence callest thyself unbegun.

Source: wiktionary