Original sentence: According to official reports of the Imperial Russian government, most of the sect's followers circumcised their boys, believed in a unitary God rather than in the Christian Trinity, accepted only the Jewish Bible (Old Testament), and observed Sabbath on Saturday rather than on Sunday as in Christian practice
Edited sentence: According to official reports of the Imperial Russian government, most of the sect's followers circumcised their boys, believed in one god rather than the Christian Trinity, accepted only the Jewish Bible (Old Testament), and observed Sabbath on Saturday rather than on Sunday as in Christian practice