יְהוָ֥ה צְבָא֑וֹת אַֽשְׁרֵ֥י אָ֝דָ֗ם בֹּטֵ֥חַ בָּֽךְ׃
גאָט פֿון צבֿאות, װױל צו דעם מענטשן װאָס פֿאַרזיכערט זיך אױף דיר.
Sefer HaMiddot
6. An effective way to nullify fear is to say "Hashem Tzva-os" (t.n. This is probably an inference to the verses in Psalms 46:8, 84:13, 20:10. These three verses are found together throughout the prayers and are known for their saving powers).