You mean Mark made no such distinction. Matthew did. We are talking about 2 eyewitness accounts that each record what they remembered. Combining eyewitness testimony gives a fuller picture of events whether it's police work or even the Bible.
The Bible condemns any sexual immorality.
So then can we agree that with one possible exception any divorce and remarriage is adultery?
The Bible condemns any sexual immorality.
Agreed.