Which preposition to use with sabbatarianism

of Occurrences 1%

In their unsophisticated minds, unprepared by reading or experience for comparisons, most of them sailing directly from English divinity schools or small bucolic pastorates, the devout preachers thought Sabbatarianism of as much consequence as morals, and vastly more important than health or earthly happiness.

Which preposition to use with  sabbatarianism