The function of הנה

Bar-Efrat points out that a significant function of the Hebrew term הנה (behold), especially after a verb of seeing, is to point out that the scene is being viewed from the perspective of one of the characters (35–36).—Judging the Judges, 31

<idle musing>
I'm too lazy to type in the Bar-Efrat reference; you'll have to either buy the book, access it through JSTOR, or borrow it from a library. Or just accept it on Mary Conway's word : )
</idle musing>