Deuteronomy 4:10-12 New American Bible (Revised Edition) (NABRE)
10 that day you stood before the Lord, your God, at Horeb, when the Lord said to me: Assemble the people for me, that I may let them hear my words, that they may learn to fear[a] me as long as they live in the land and may so teach their children. 11 You came near and stood at the foot of the mountain, while the mountain blazed to the heart of the heavens with fire and was enveloped in a dense black cloud. 12 Then the Lord spoke to you from the midst of the fire. You heard the sound of the words, but saw no form; there was only a voice.