Which preposition to use with polemical

in Occurrences 1%

We will take this occasion to say that our legend is not polemical in any sense, and that we have no intention to enter into discussions or arguments connected with this subject, beyond those that we may conceive to be necessary to illustrate the picture which it is our real aim to drawthat of a confiding, affectionate, nay, devoted woman's heart, in conflict with a deep sense of religious duty.

Which preposition to use with  polemical