Deuteronomy 4:11-13 21st Century King James Version (KJ21)
11 And ye came near and stood under the mountain; and the mountain burned with fire unto the midst of heaven, with darkness, clouds, and thick darkness.
12 And the Lord spoke unto you out of the midst of the fire. Ye heard the voice of the words, but saw no similitude; only ye heard a voice.
13 And He declared unto you His covenant, which He commanded you to perform, even Ten Commandments; and He wrote them upon two tablets of stone.