Exodus 19:12

Put limits for the people around the mountain and tell them, 'Be careful that you do not go up the mountain or touch the foot of it. Whoever touches the mountain shall surely be put to death.

(New International Version)

'You shall set bounds for the people all around, saying, 'Beware that you do not go up on the mountain or touch the border of it; whoever touches the mountain shall surely be put to death.

(New American Standard Bible)

And thou shalt set bounds unto the people round about, saying, Take heed to yourselves, that ye go not up into the mount, or touch the border of it: whosoever toucheth the mount shall be surely put to death:

(King James Version)