וְאוּלָם בַּעֲבוּר זֹאת הֶעֱמַדְתִּיךָ וגו' וּלְמַעַן סַפֵּר שְׁמִי בְּכָל הָאָרֶץ (ט, טז)
But, for this I have allowed you to stand…in order to declare My name all over the earth. (9:16)
My grandfather, the Kretchnifer Rebbe zy”a (Gilyon Kol Emunah) asked why Hashem cares if His name is declared all over the world.
He answered that this is meant as a lesson for all Jews. When we walk in the streets, we should not be embarrassed that we are Jews. Why should we care if bareheaded strangers who live whatever lifestyle they want make fun of us for having payos and dressing like religious Jews?
Thus, the pasuk says that we should declare Hashem’s name throughout the land, meaning that we should be unashamed to show the world that we are connected to Hashem.