Deuteronomy 4:33-36 New Revised Standard Version (NRSV)
33 Has any people ever heard the voice of a god speaking out of a fire, as you have heard, and lived? 34 Or has any god ever attempted to go and take a nation for himself from the midst of another nation, by trials, by signs and wonders, by war, by a mighty hand and an outstretched arm, and by terrifying displays of power, as the Lord your God did for you in Egypt before your very eyes? 35 To you it was shown so that you would acknowledge that the Lord is God; there is no other besides him. 36 From heaven he made you hear his voice to discipline you. On earth he showed you his great fire, while you heard his words coming out of the fire.