Exodus 19:13

ירה יירה HE SHALL SURELY BE CAST DOWN — From this we derive the law regarding those who are sentenced to be stoned that they have to be thrown down from the place of stoning, which was a spot of the height of twice a man’s stature (Sanhedrin 45a). יירה means HE SHALL BE THROWN BELOW to the ground, the word being similar to, (Exodus 15:4) “He hath cast down (ירה) into the sea”. במשך היבל WHEN THE RAM’S HORN SOUNDETH LONG — when the ram’s horn draws out a long sound that is a sign of the departure of the Shechina and that the Divine voice is about to cease, and as soon as “I” shall depart they shall be permitted to ascend [i. e. המה יעלו בהר is not obligatory, signifying, “they shall go up”, but it is permissive] (Mekhilta). היבל — This denotes a ram’s horn, for so do they term, a ram in Arabia — יובלא (corresponding to the Hebrew יובל) (Rosh Hashanah 26a). The horn used here was that of Isaac’s ram (Pirkei DeRabbi Eliezer 31).

לֹא־תִגַּ֨ע בּ֜וֹ יָ֗ד כִּֽי־סָק֤וֹל יִסָּקֵל֙ אוֹ־יָרֹ֣ה יִיָּרֶ֔ה אִם־בְּהֵמָ֥ה אִם־אִ֖ישׁ לֹ֣א יִחְיֶ֑ה בִּמְשֹׁךְ֙ הַיֹּבֵ֔ל הֵ֖מָּה יַעֲל֥וּ בָהָֽר׃

no hand shall touch him, but he shall surely be stoned, or shot through; whether it be beast or man, it shall not live: when the horn sounds long, they shall come up to the mountain.