Having addressed one ditch, the other ditch of harlotry AKA easy-believeism, antinomianism etc. should be mentioned as well. Lordship lacking the love that comes with husbandship, this group loves them all, or so they think. As a spiritual harlot, they try to take Christ plus anything or sometimes plus everything. They cannot be content with one husband but must have many, as dictated by their love of the world. For these, syncretism becomes the order of the day, a mingling of two or more things that are entirely inconsistent. They think they can have Christ AND whatever comes to the imagination of their heart. They are not a devoted spouse but have multiple lovers (can be self, worldliness, licentiousness, purpose-driven etc) hence the term harlot.
This group does seem to be by far the larger of the two at present, and will make up a very important part of the anything-goes harlot in Rev 17. They simply love not Christ, for they know not what love is. Love ultimately places the object loved at the foremost pre-eminence! The spiritual harlot having devoted themselves to worship after their own imaginations, this love they have reserved for themselves rather than for Christ as husband.
For the path to be narrow, there has to be something on the left and the right of it. If you find yourself aware of or guarding against only one of the ditches, most often you are in the other one.
The whole issue can be summed up as “Love your Husband, and He alone.”
Ezek 16:35-38 Wherefore, O harlot, hear the word of the Lord: Thus saith the Lord God; Because thy filthiness was poured out, and thy nakedness discovered through thy whoredoms with thy lovers, and with all the idols of thy abominations, and by the blood of thy children, which thou didst give unto them; Behold, therefore I will gather all thy lovers, with whom thou hast taken pleasure, and all them that thou hast loved, with all them that thou hast hated; I will even gather them round about against thee, and will discover thy nakedness unto them, that they may see all thy nakedness. And I will judge thee, as women that break wedlock and shed blood are judged; and I will give thee blood in fury and jealousy.