Танах к Шмот 5:22

Moshe said to Adonoy, “I beg You Adonoy, I am not a man of words—not since yesterday, not since the day before—not from the time You [first] spoke to Your servant, for I am clumsy [slow] of mouth [speech] and clumsy [slow] of tongue [language].”

Elohim spoke to Moshe and said to him, “I am Adonoy.

The entire Mount Sinai was enveloped with smoke, for Adonoy had descended upon it in fire. Its smoke rose like the smoke of a [lime] furnace and the entire mountain trembled violently.