Which preposition to use with marthas

in Occurrences 1%

"Yes," he continued, after a pause,"all the careful Marthas in those days will have no excuse for not sitting at the feet of Jesus; there will be no cumbering with much serving; the Church will have only Maries in those days.

of Occurrences 1%

"I know the Yankees are the Marthas of the nation.

Which preposition to use with  marthas