It is common in the Bible for people to "rise up," and it would be easy to pass over the phrase as simply describing a physical action. But in fact it represents an elevation in spiritual state, moving to a more internal frame of mind closer to the Lord. Often it has to do with understanding a new or important idea; we "rise up" to a state of greater perception and enlightenment. Obviously context is crucial to the exact meaning of the phrase in a given passage -- it matters greatly who it is that is rising up, and why.

544. Who would shepherd all nations with a rod of iron. This symbolizes doctrine which by truths drawn from the literal sense of the Word, together with rational arguments in accord with people's natural sight, will convince all those willing to be convinced whose worship is a lifeless worship owing to their divorcing faith from charity.

This refers to the doctrine of the New Church, because it is said about the male child, which symbolizes that doctrine (no. 543). To shepherd means, symbolically, to teach and instruct (no. 383), here to convince those people who are willing to be convinced. Nations symbolize people caught up in evil practices (no. 483), here people engaged in dead worship in consequence of their divorcing faith from charity, because these are the subject here, and they are caught up in evil practices. For when charity is set aside, no goodness is practiced, and where there is no goodness, evil is present instead. To rule with a rod of iron means, symbolically, to do so by means of the truths in the Word's literal sense, and at the same time by rational considerations drawn from people's natural sight, as may be seen in no. 148 above.