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Matthew 19:3-9
3 The Pharisees also came unto him, tempting him, and saying unto him, Is it lawful for a man to put away his wife for every cause?
4 And he answered and said unto them, Have ye not read, that he which made them at the beginning made them male and female,
5 And said, For this cause shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh?
6 Wherefore they are no more twain, but one flesh. What therefore God hath joined together, let not man put asunder.
7 They say unto him, Why did Moses then command to give a writing of divorcement, and to put her away?
8 He saith unto them, Moses because of the hardness of your hearts suffered you to put away your wives: but from the beginning it was not so.
9 And I say unto you, Whosoever shall put away his wife, except it be for fornication, and shall marry another, committeth adultery: and whoso marrieth her which is put away doth commit adultery.
Romans 7:1-4
1 Know ye not, brethren, (for I speak to them that know the law,) how that the law hath dominion over a man as long as he liveth?
2 For the woman which hath an husband is bound by the law to her husband so long as he liveth; but if the husband be dead, she is loosed from the law of her husband.
3 So then if, while her husband liveth, she be married to another man, she shall be called an adulteress: but if her husband be dead, she is free from that law; so that she is no adulteress, though she be married to another man.
4 Wherefore, my brethren, ye also are become dead to the law by the body of Christ; that ye should be married to another, even to him who is raised from the dead, that we should bring forth fruit unto God.
Luke 16:18
18 Whosoever putteth away his wife, and marrieth another, committeth adultery: and whosoever marrieth her that is put away from her husband committeth adultery.
This one specifically talks about just divorcing for the sake of it and then marrying another person … then it would be a matter of using the scriptures to demonstrate the attributes that man/woman/husband/wife should have (1 Corinthians 7, 1 Peter 3, Proverbs 31, etc etc)
1 Peter 3
Husbands and wives be in subjection to each other (v5 & 7)
Wives to have meek humble spirit
1 Corinthians 7:1-11
Showing kindness.
Husband and wife has power over each others body, and not to defraud each other except with consent.
If (rare, one of the last options!) a wife departs from the husband – they are to remain unmarried. And (as per Matthew 7, Romans 7, Luke 16) the husband is not to divorce the wife, unless from fornication.