Deuteronomy 3:24
אֲדֹנָי ה’ אַתָּה הַחִלּוֹתָ לְהַרְאוֹת אֶת עַבְדְּךָ אֶת גָּדְלְךָ וְאֶת יָדְךָ הַחֲזָקָה אֲשֶׁר מִי אֵל בַּשָּׁמַיִם וּבָאָרֶץ אֲשֶׁר יַעֲשֶׂה כְמַעֲשֶׂיךָ וְכִגְבוּרֹתֶךָ
L-rd G-d, You have begun to show Your servant Your greatness and Your strong hand; what power is there in Heaven or on Earth that can do like Your works, and Your mighty deeds?
G-d’s four-letter Name (YHVH) is normally read as if it were written “Adonai,” but in this verse, the actual word “Adonai” is followed by G-d’s four-letter Name. We therefore pronounce YHVH in this instance as if it were written “Elohim.” Rashi explains this combination of Names to mean that G-d is merciful in judgment.