The Lord said to Moses, ‘I am going to come to you in a dense cloud, so that the people will hear when I speak with you and will always believe you.’ Moses reported the people’s words to the Lord,
While he was still speaking, suddenly a bright cloud covered them, and a voice from the cloud said, ‘This is my beloved Son, with whom I am well-pleased. Listen to him! ’
On the third day, when morning came, there was thunder and lightning, a thick cloud on the mountain, and a very loud blast from a ram’s horn, so that all the people in the camp shuddered.