Matthew 19:7-8 They said unto him, Why did Moses then command to give a writing of divorcement, and to put her away?

KJ2000⁽ⁱ⁾ ⁷ They said unto him, Why did Moses then command to give a writing of divorcement, and to put her away? ⁸ He said unto them, Moses because of the hardness of your hearts allowed you to put away your wives: but from the beginning it was not so.