Exodus 4:11 So the Lord said to him, “Who has made man’s mouth? Or who makes the mute, the deaf, the seeing, or the blind? Have not I, the Lord?
God was the one who created us, mankind, with a mouth to speak with, eyes to see with and ears to hear with.
But we are also reminded here that He has allowed some to be born with mouths which do not work properly, eyes which do not see and ears which cannot hear.
These are not to punish people but rather so He can be glorified the more – we do not know or understand all of His ways, but we know His ways are perfect.