Exodus 19:19
And the sound of the ram's horn became {louder and louder}, and Moses would speak, and God would answer him with a voice.
Psalm 81:7
In this trouble you called, and I rescued you. Within [the] secret place of thunder I answered you; I tested you at the waters of Meribah. Selah
Exodus 19:16
{And} on the third day, when it was morning, there was thunder and lightning, and a heavy cloud over the mountain and a very loud ram's horn sound, and all the people who [were] in the camp trembled.
Exodus 19:13
Not a hand will touch it, because he will certainly be stoned or certainly be shot; whether an animal or a man, he will not live.' At the blowing of the ram's horn they may go up to the mountain."
Nehemiah 9:13
Then you came down on Mount Sinai and spoke with them from heaven and gave them right judgments and true teachings, good regulations and commandments.
Hebrews 12:21
And the spectacle was so terrifying [that] Moses said, "I am terrified and trembling."