What weighed most with Sabellius was the monotheistic interest.
Hymns were then addressed to Amen-re, which are almost monotheistic in expression.
Moslems and Jews were applying Aristotelian philosophy to rigorously monotheistic faiths; Christianity had been encouraged by Platonism in teaching a trinity of divine persons, and Platonism of a certain order long dominated the middle ages as part of the Augustinian tradition.
The book is absolutely monotheistic, and the character ascribed to the deity is ethically pure with the exception mentioned above.
It preserved the monotheistic idea yet afforded a description of the Divine activity in terms of Hellenic thought; the Word of the Old Testament is one with the X6yos of the Stoics.