Hebrews 12:18-19

For you have not come [as did the Israelites in the wilderness] to a mountain that can be touched and to a blazing fire, and to gloom and darkness and a raging windstorm, and to the blast of a trumpet and a sound of words [such that] those who heard it begged that nothing more be said to them. [Ex 19:12-22; 20:18-21; Deut 4:11, 12; 5:22-27]