This is a simple quickie conscript derived from the Aramaic script (ancestor to both the Hebrew and Arabic scripts; Aramaic itself is very close to the Phoenician script that it descends from, and Phoenician of course was borrowed by the Greeks to be the basis of the western alphabets).
The text is just a bunch of Hebrew pangrams ("the quick brown fox...") I got from Wikipedia. The first one has the hebrew equivalent letters.
This is for a story setting with demonological magic. In it, demons are qualitatively equivalent to angels and gods, they are of made of the same stuff. The demons of Abrahamaic religions just happen to be former gods and spirits that YHWH was able to defeat and imprison, especially from old Levantine pantheons: angels are his collaborators, and Satan (maybe I'll go with "the Satan", the title form...) is another 'angel', one who is set to guard over hell (like Maliik in Islam) and tempt believers (to be a Job-botherer). This is why the name of God and other such paraphernalia can compel demons in ritual magic: they're YHWH's bitches, after all...
If the core of the demon corps is formed by Levantine gods and pseudo-angels, that probably means they speak something like Proto-Semitic or some kind of descendant language (as do the angels and God). The script they got later.