Sentence:  ... err not, that so shall end / The strife which thou callest evil, but we style / The strife of glory; which we mean to win, / Or turn this Heaven itself into the Hell / Thou <WSD>fablest</WSD> ... 
Meaning of the word marked with <WSD> tags:  To make up; to devise, and speak of, as true or real; to tell of falsely; to recount in the form of a fable.