Evidence suggesting that Ptolemy could have deified JubaII after his death is from the writings of the Christian author of the 3rd century Marcus Minucius Felix. In Felix's "Octavius", the writer records a dialogue between a Christian and a pagan from Cirta. This dialogue was part of a Christian argument that divinity is impossible for mortals. Felix lists humans who were said to have become divine: "Saturn, Jupiter, Romulus and Juba". Further literary evidence, suggesting the deification of JubaII by Ptolemy, is from the brief euhemerist exercise entitled "On the Vanity of Idols" by the 3rd-century Christian saint Cyprian. In his exercise in deflating the gods, Cyprian observed and stated that the Mauretanians were manifestly worshiping their kings and did not conceal their name by any disguise. According to the surviving evidence there is a strong probability that JubaII and Ptolemy were deified by the Berbers after their deaths.