וַיְהִי֩ בַיּ֨וֹם הַשְּׁלִישִׁ֜י בִּֽהְיֹ֣ת הַבֹּ֗קֶר וַיְהִי֩ קֹלֹ֨ת וּבְרָקִ֜ים וְעָנָ֤ן כָּבֵד֙ עַל־הָהָ֔ר וְקֹ֥ל שֹׁפָ֖ר חָזָ֣ק מְאֹ֑ד וַיֶּחֱרַ֥ד כָּל־הָעָ֖ם אֲשֶׁ֥ר בַּֽמַּחֲנֶֽה׃
И было на третий день, когда было утро, на горе были громы и молнии, и густое облако, и голос рога громкий; и все люди, которые были в лагере, дрожали.
Berakhot
If he does felicitate him, what is his reward ? R. Joshua b. Levi said : He is worthy of Torah which was given amidst five "voices"; as it is said, "And it came to pass on the third day, when it was morning, that there were thunders and lightnings and a thick cloud upon the mount, and the voice of a horn exceeding loud... and when the voice of the horn waxed louder and louder, Moses spoke, and God answered him by a voice" (Exod. xix. 16 ff.).