Interesting how we always leave out St. Paul's advice in One Corinthians that a new Christian, married to an unbeliever who did not like the spousal conversion, should divorce. Even though he had just quoted Jesus as saying 'no divorce', he seems to think he had authority to modify the 'rule'.

Grounds he gives is that 'God calls us to live in peace, not discord'.

Those grounds of divorce would apply in many marital situations.

In determining our 'Church Rule'' about marriage, we seem to  take one passage, from one Gospel - without considering slightly different 'sayings''' in other Gospels, or other Bible sayings about marriage.

Before making just one text an 'absolute', we ought to consider all the texts about the  topic.