Deuteronomy 1:32

1:32 However, through all this you did not have confidence in the Lord your God,

Deuteronomy 4:12

4:12 Then the Lord spoke to you from the middle of the fire; you heard speech but you could not see anything – only a voice was heard. ¹ 

¹ tn The words “was heard” are supplied in the translation to avoid the impression that the voice was seen.