Christians say that Jesus is the prophet like Moses.
In the Book of Deuteronomy, God says through Moses:
The Lord your God will raise up for you a prophet like me from among you, from your fellow Israelites. You must listen to him. For this is what you asked of the Lord your God at Horeb on the day of the assembly when you said, “Let us not hear the voice of the Lord our God nor see this great fire anymore, or we will die.” (Deuteronomy 18:15-16)
Referring to when the Israelites asked Moses to speak to them directly instead of God, after He revealed the ten commandments:
When the people saw the thunder and lightning and heard the trumpet and saw the mountain in smoke, they trembled with fear. They stayed at a distance and said to Moses, “Speak to us yourself and we will listen. But do not have God speak to us or we will die.” (Exodus 20:19)
But when Jesus arrived, both during his baptism and during the transfiguration, God shows his voice again.
And a voice from heaven said, “This is my Son, whom I love; with him I am well pleased.” (Matthew 3:17)
While Peter was still speaking, a bright cloud enveloped them, and a voice from the cloud said, "This is My beloved Son, in whom I am well pleased. Listen to Him!" (Matthew 17:5)
Why would God show his voice again when the prophet like Moses arrived if the very reason he sent Moses was that he wouldn't need to show his voice?