In a sermon comparing those that don't hold formalized membership in the congregations that they attend to shacked up whores, the preacher claimed that if you don't belong to a single church, you won't know what pastor to submit to. There isn't that much divergency in orthodox formulations of the faith that the teaching is going to pull you in two competing ethical directions. If you don't hold a position in a church beyond that of pew filler, no church should be allowed to control you to such an extent. If you need someone to control you on the personal level that you can't decide for yourself what constitutes solid teaching and sound morals, you are afflicted with a profound mental or emotional deficiency.