Exodus 20:22
And Jehovah said to Moses, So you shall say to the sons of Israel, You have seen that I have talked with you from the heavens.
Nehemiah 9:13
And You came down on Mount Sinai, and spoke with them from Heaven, and gave them right judgments and true laws, good statutes and commandments.
Deuteronomy 4:36
He made you hear His voice out of Heaven so that He might teach you. And He showed you His great fire upon earth. And you heard His words out of the midst of the fire.
Hebrews 12:25-26
See that you do not refuse Him who speaks. For if they did not escape, those who refused him that spoke on earth, much more we shall not escape if we turn away from Him who speaks from Heaven,