Matthew 19:7

Overview - Matthew 19
Christ heals the sick;
answers the Pharisees concerning divorcement;
10 shows when marriage is necessary;
13 receives little children;
16 instructs the young man how to attain eternal life;
20 and how to be perfect;
23 tells his disciples how hard it is for a rich man to enter into the kingdom of God;
27 and promises reward to those that forsake any thing to follow him.
Treasury of Scripture Knowledge

Matthew 19:7  (King James Version)
They say unto him, Why did Moses then command to give a writing of divorcement, and to put her away?

5:31 Deuteronomy 24:1-4 ; Isaiah 50:1 ; Jeremiah 3:8 ; Mark 10:4

and to
1:19 Malachi 2:16