Analysis of information sources in references of the Wikipedia article "Kvadrat Sator" in Croatian language version.
Entry: Word Square by Ulrich Ernst
Rotas Sator (first century): Although the result is striking, the interpretation rests on the unlikely assumptions, and a non-Christian meaning is more probable.
Sator Square amulet: This early Christian magical tool called the Sator Square shows words that are readable backward or forwards. In his book on pow-wows, Johann George Hohman stated that the Sator Square possessed properties that could extinguish fires as readily as protect cows from witches.
It is much more likely that we are dealing with a Latin-speaking Jewish slogan here, and there is plenty of evidence for Jews in the Vesuvian towns (including a kosher version of garum, the Roman staple of rotten fish sauce). "Alpha" and "omega" are well known in Jewish literature, and "our father" is perfectly compatible with a Jewish cultural background (and are found as that in Jewish prayers).