Hebrews 12:18

looking carefully lest there be any man who falls short of the grace of God, lest any root of bitterness springing up trouble you and many be defiled by it,

lest there be any sexually immoral person or profane person, like Esau, who sold his birthright for one meal.

For you know that even when he afterward desired to inherit the blessing, he was rejected, for he found no place for a change of mind though he sought it diligently with tears.

the sound of a trumpet, and the voice of words; which those who heard it begged that not one more word should be spoken to them,

for they could not stand that which was commanded, “If even an animal touches the mountain, it shall be stoned”.

So fearful was the appearance that Moses said, “I am terrified and trembling.”