In Sefer Tehilim (95:7), it’s written that we are Hashem’s people, “today, if you hear His voice.” But, what does it mean in a practical sense to “hear” Hashem’s voice? What exactly are we supposed to be listening for? A Bas Kol from Shamayim? And [Hashem] said: “Go out and stand in the mountain before Hashem, Behold! Hashem passes, and a great and strong wind splitting mountains and shattering boulders [goes out] before Hashem. ‘Hashem is not in the wind.’ And after the wind, an earthquake. ‘Hashem is not in the earthquake.’ After the earthquake, a fire. ‘Hashem is not in the fire,’ and after the fire, a still thin sound [literally: “voice”].” Melachim I 19:11-12