Exodus 19:10-13

10Then the LORDH3068 saidH559 to MosesH4872, “GoH1980H413 toH413 the peopleH5971 and consecrate themH6942 todayH3117 and tomorrowH4279. They must washH3526 their clothesH8071 11and beH1961 preparedH3559 by the thirdH7992 dayH3117, forH3588 on the thirdH7992 dayH3117 the LORDH3068 will come downH3381 onH5921 MountH2022 SinaiH5514 in the sightH5869 of allH3605 the peopleH5971.

12And you are to set up a boundaryH1379 for the peopleH5971 aroundH5439 the mountain and tell themH559, ‘Be carefulH8104 not to go upH5927 on the mountainH2022 or touchH5060 its baseH7097. WhoeverH3605 touchesH5060 the mountainH2022 shall surely be put to deathH4191. 13NoH3808 handH3027 shall touchH5060 him, butH3588 he shall surely be stonedH5619 orH176 shotH3384 with arrowsH3384—whetherH518 manH376 orH518 beastH929, he must notH3808 liveH2421.’1

Only when the ram’s hornH3104 sounds a long blastH4900 may theyH1992 approachH5927 the mountainH2022.2”