Procopius of Caesarea and the girgashite diaspora

Procopius of Caesarea reports the existence of an inscription in Numidia, allegedly written by the refugees from Canaan's conquest by Joshua. While this claim cannot be taken at face value, it raises interesting questions as to its provenance and purpose. Regarding provenance, the complicated situation of the sources (especially the ongoing debate about the real date of Moses of Khorene) unfortunately prevents a firm conclusion. Regarding purpose, the inscription seems to reflect the political and religious tensions, which accompanied Belisarius' campaign to regain North Africa for the Roman Empire and Justinian's attempts to Christianize those parts of African society who abided by their polytheistic ancestral custom.