Hebrew Bible

Exodus 19:12

10 The Lord said to Moses, “Go to the people and sanctify them today and tomorrow, and make them wash their clothes 11 and be ready for the third day, for on the third day the Lord will come down on Mount Sinai in the sight of all the people. 12 You must set boundaries for the people all around, saying, ‘Take heed to yourselves not to go up on the mountain nor touch its edge. Whoever touches the mountain will surely be put to death! 13 No hand will touch him—but he will surely be stoned or shot through, whether a beast or a human being; he must not live.’ When the ram’s horn sounds a long blast they may go up on the mountain.” 14 Then Moses went down from the mountain to the people and sanctified the people, and they washed their clothes.

Date: 5th Century B.C.E. (Final composition)
* Dates are based on scholarly estimates
New Testament

Hebrews 12:20

18 For you have not come to something that can be touched, to a burning fire and darkness and gloom and a whirlwind 19 and the blast of a trumpet and a voice uttering words such that those who heard begged to hear no more. 20 For they could not bear what was commanded: “If even an animal touches the mountain, it must be stoned.” 21 In fact, the scene was so terrifying that Moses said, “I shudder with fear.” 22 But you have come to Mount Zion, the city of the living God, the heavenly Jerusalem, and to myriads of angels, to the assembly

Date: 80-90 C.E.
* Dates are based on scholarly estimates