Marco 10:2-9

²And the Pharisees, having come near, questioned him, if it is lawful for a husband to put away a wife, tempting him,

³and he answering said to them, 'What did Moses command you?'

⁴and they said, 'Moses suffered to write a bill of divorce, and to put away.'a

⁵And Jesus answering said to them, 'For the stiffness of your heart he wrote you this command,

⁶but from the beginning of the creation, a male and a female God did make them;b

⁷on this account shall a man leave his father and mother, and shall cleave unto his wife,c

⁸and they shall be — the two — for one flesh; so that they are no more two, but one flesh;d

⁹what therefore God did join together, let not man put asunder.'e