Here the words "look upon" are a request for God to take notice of the way in which the Jewish leaders threatened the believers. Alternate translation: "notice how they threaten to punish us" (See: [[rc://en/ta/man/translate/figs-idiom]])
The word "word" here is a metonym for God's message. The abstract noun "boldness" can be translated as an adverb. Alternate translation: "speak your message boldly" or "be bold when we speak your message" (See: [[rc://en/ta/man/translate/figs-metonymy]])