The Pharisees asked Jesus whether it was lawful for a man to divorce his wife, and the Lord explained that from the beginning, He did not intend for divorce to be an option, although it was under the Law of Moses.
The disciples had the same question, and they asked Jesus about it, even after He had already explained it,
In the house His disciples also asked Him again about the same matter. So He said to them, “Whoever divorces his wife and marries another commits adultery against her. And if a woman divorces her husband and marries another, she commits adultery” (Mark 10.10–12).
Jesus implanted in our thinking that divorce should not be an easy option to us. When you get married, He intends for it to be for life, that is how He created it.