Then Moses told the LORD, "Please, LORD, I'm not eloquent. I never was in the past nor am I now since you spoke to your servant. In fact, I talk too slowly and I have a speech impediment."
Very well, then, through the mouths of foreigners and foreign languages the LORD will speak to this people
Some people brought him a deaf man who also had a speech impediment. They begged him to lay his hand on him.
The hearts of reckless people will understand sound judgment, and the tongues of those who stammer will be ready to speak clearly.
No longer will you see those arrogant people, those people with their obscure speech you cannot comprehend, stammering in a language you cannot understand.