Sentence:  There is also the "wilfully ignorant" professor, or him that is afraid to know more, for fear of the cross; he is for picking and chusing of truth, and loveth not to hazzard his all for that worthy name by which he would be called: when he is at any time <WSD>overset</WSD> by arguments, or awaknings of conscience, he uses to heal all, by, "I was not brought up in this faith" ... 
Meaning of the word marked with <WSD> tags:  To overwhelm; to overthrow, defeat.