וַיֹּ֤אמֶר מֹשֶׁה֙ אֶל־יְהוָ֔ה לֹא־יוּכַ֣ל הָעָ֔ם לַעֲלֹ֖ת אֶל־הַ֣ר סִינָ֑י כִּֽי־אַתָּ֞ה הַעֵדֹ֤תָה בָּ֙נוּ֙ לֵאמֹ֔ר הַגְבֵּ֥ל אֶת־הָהָ֖ר וְקִדַּשְׁתּֽוֹ׃
And Moses said unto the LORD: ‘The people cannot come up to mount Sinai; for thou didst charge us, saying: Set bounds about the mount, and sanctify it.’
Find Talmudic references to Exodus 19:23: , passages from the Talmud Bavli and Yerushalmi.