Jesus Speaks About Divorce

Today I read something about family and very coincidentally I also read the gospel of Mark about divorce.
Here are some of the important things we need to know about Jesus thoughts on divorce from Mark:

Mk 10:4-5
They said, Moses permitted a man to write a certificate of divorce and send her away.
Jesus replied, "It was because your hearts were hard that Moses wrote your this law."

Mk 10:9
... What God has joined together, let man not separate.

Mk 10:11
... Anyone who divorces his wife and marries another woman commits adultery against her.
And if she divorces her husband and marries another man, she commits adultery."