Sorry, I disagree. Old nature, maybe, But as Jesus said, "In the beginning it was not so."

Mat 19:3 And there came unto him Pharisees, trying him, and saying, Is it lawful for a man to put away his wife for every cause? Mat 19:4

And he answered and said, Have ye not read, that he who made them from the beginning made them male and female, (Not male and females...) Mat 19:5

and said, For this cause shall a man leave his father and mother, and shall cleave to his wife; (singular, not plural) and the two shall become one flesh.

Mat 19:6

So that they are no more two, but one flesh. What therefore God hath joined together, let not man put asunder.

Mat 19:7

They say unto him, Why then did Moses command to give a bill of divorcement, and to put her away? Mat 19:8

He saith unto them, Moses for your hardness of heart suffered you to put away your wives: but from the beginning it hath not been so. Mat 19:9

And I say unto you, Whosoever shall put away his wife, except for fornication, and shall marry another, commits adultery: and he that marries her when she is put away commits adultery. Mat 19:10

The disciples say unto him, If the case of the man is so with his wife, it is not expedient to marry.

Mat 19:11

But he said unto them, Not all men can receive this saying, but they to whom it is given.