Mark 10:4

²  And the Pharisees came to him, and asked him, Is it lawful for a man to put away his wife? tempting him.

³  And he answered and said unto them, What did Moses command you?

⁴  And they said, Moses suffered to write a bill of divorcement, and to put her away.

⁵  And Jesus answered and said unto them, For the hardness of your heart he wrote you this precept.

⁶  But from the beginning of the creation God made them male and female.