Sentence:  ... But if thou declare / The Secrets, truth; and art so mad to dare / (In <WSD>glory</WSD> of thy fortunes) to approue, / That rich-crownd Venus, mixt with thee in loue; / Ioue (fir'd with my aspersion, so dispred) / Will, with a wreakefull lightning, dart thee dead. 
Meaning of the word marked with <WSD> tags:  Pride; boastfulness; arrogance.