And you give me the shield of your salvation. Three things were given as a gift to the world, and they are: the Torah, rain, and lights. The Torah, as it is said, "And He gave to Moses" (Exodus 31:18). Rain, as it is said, "I will give rain for your land" (Deuteronomy 11:14).
Lights, as it is said, "And God set them in the firmament of the heaven" (Genesis 1:17). Rabbi Zeira said in the name of Resh Lakish: also peace, as it is said, "And I will give peace in the land" (Leviticus 26:6). And the Rabbis say: also vengeance, as it is said, "And I will execute vengeance upon Edom" (Ezekiel 25:14). Rabbi Yehoshua said: also salvation, as it is said, "And you give me the shield of your salvation."
And in the merit of what? In the merit of the Torah. And your right hand supports me. This is the Torah, as it is said, "From His right hand went a fiery law for them" (Deuteronomy 33:2).