Matthew 19:7

Then said they to him, "Why did Moses command to give unto her a testimonial of divorcement, and to put her away?"

Deuteronomy 24:1-4

When a man hath taken a wife and married her, if she find no favour in his eyes, because he hath spied some uncleanness in her: Then let him write her a bill of divorcement and put it in her hand and send her out of his house.

Matthew 5:31

It is said, Whosoever put away his wife let him give her a testimonial also of the divorcement.

Isaiah 50:1

Thus sayeth the LORD: Where is the bill of your mother's divorcement, that I sent unto her? Or who is the usurer, to whom I sold you? Behold, for your own offenses are ye sold: and because of your transgression, is your mother forsaken.

Jeremiah 3:8

Namely, that after I had well seen the adultery of the shrinking harlot Israel, I put her away, and gave her a bill of divorcement. For all this, her unfaithful sister Judah was not ashamed, but went back and played the whore also.

Malachi 2:16

If thou hatest her, put her away, sayeth the LORD God of Israel and give her a clothing for the scorn, sayeth the LORD of Hosts. Look well then to your spirit, and despise her not.

Matthew 1:19

Then Joseph her husband, being a perfect man, and loath to make an example of her, was minded to put her away secretly.

Mark 10:4

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

Treasury of Scripture Knowledge

Summary

They say unto him, Why did Moses then command to give a writing of divorcement, and to put her away?

General references

Bible References

Why

Matthew 5:31
It is said, Whosoever put away his wife let him give her a testimonial also of the divorcement.
Deuteronomy 24:1
When a man hath taken a wife and married her, if she find no favour in his eyes, because he hath spied some uncleanness in her: Then let him write her a bill of divorcement and put it in her hand and send her out of his house.
Isaiah 50:1
Thus sayeth the LORD: Where is the bill of your mother's divorcement, that I sent unto her? Or who is the usurer, to whom I sold you? Behold, for your own offenses are ye sold: and because of your transgression, is your mother forsaken.
Jeremiah 3:8
Namely, that after I had well seen the adultery of the shrinking harlot Israel, I put her away, and gave her a bill of divorcement. For all this, her unfaithful sister Judah was not ashamed, but went back and played the whore also.
Mark 10:4
And they said, "Moses suffered to write a testimonial of her divorcement, and to put her away."

And to

Matthew 1:19
Then Joseph her husband, being a perfect man, and loath to make an example of her, was minded to put her away secretly.
Malachi 2:16
If thou hatest her, put her away, sayeth the LORD God of Israel and give her a clothing for the scorn, sayeth the LORD of Hosts. Look well then to your spirit, and despise her not.

General references

Mark 10:4
And they said, "Moses suffered to write a testimonial of her divorcement, and to put her away."