how do the girls use their knowledge and experience to help others stay safe at the beach lesson 1.02

1.the hosts on two opposing mountains stood,  

2.thick as the foliage of the waving wood;  

3.between them an extensive valley lay,  

4.o'er which the gleaming armour pour'd the day,  

5.when from the camp of the philistine foes,

6. dreadful to view, a mighty warrior rose; in the dire deeds of bleeding battle skill'd,

isn't this axel talking to his uncle?

idk

explanation:

which one is underlined?