His parents answered, “We know he is our son. We know he was born blind.
His parents answered them and said, We know that this is our son, and that he was born blind:
His parents answered, We know that this is our son, and that he was born blind.
His parents answered and said, We know that this is our son, and that he was born blind:
His parents responded to them and said: "We know that this is our son and that he was born blind.