Is Expository Preaching Sound Doctrine?

Christians sometimes equate expository preaching with sound doctrine. The great starting point is, i'm looking for a good church well and a faithful pastor who loves the lord well. That's going to show itself in wanting to do expository preaching. All kinds of heretics have hidden behind this kind of mask,. if you will, of supposed expository preachings. When it's not, it's not the real deal, they're given poison or at least compromising behind that cloak that looks so good and nice.