Exodus 20:22
And Jehovah said unto Moses, Thus thou shalt say unto the children of Israel, Ye yourselves have seen that I have talked with you from heaven.
Nehemiah 9:13
Thou camest down also upon mount Sinai, and spakest with them from heaven, and gavest them right ordinances and true laws, good statutes and commandments,
Deuteronomy 4:36
Out of heaven he made thee to hear his voice, that he might instruct thee: and upon earth he made thee to see his great fire; and thou heardest his words out of the midst of the fire.
Hebrews 12:25-26
See that ye refuse not him that speaketh. For if they escaped not when they refused him that warned them on earth, much more'shall not we escape who turn away from him that warneth from heaven: