Sentence:  The beneficed ministers, however, stimulated by missives from the Scotch kirk, now in arms for Charles II., continued, says the gentle Mrs. Hutchinson, to <WSD>'spit fire</WSD> out of their pulpits,' and even the rout of their allies at Dunbar, though it made their tongues less dangerous, did not make them more smooth. 
Meaning of the word marked with <WSD> tags:  To speak with vehemence.