“Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another: and so much the more, as ye see the day approaching.”
We come to Christ individually but we grow collectively. As christians we are called to be part of a body. I understand we might ask, why do I need a body? It is made up of imperfect people. I do understand we live in and imperfect world, so are we.
There is power in the community of believers. In Acts of Apostles, God was able to do exceeding wonders among the believers because of their coming together. You might also ask, why you need a preacher? You know, there is a need for headship. We are in a century where we struggle with leadership probably more than any other. We can not stand someone leading us. God can not work in us without submitting to authority. We are not weak, we are strong. We are not foolish but We are wise. And again we are stronger together.