1) Is membership in a church NECESSARY for salvation and a Christian Life, or can these things be attained and lived without a church? What is the justification for this?
2) If church membership is necessary, is there any indication that picking the RIGHT church is necessary? Is it the case that it is different strokes for different folks, that diversity in churches is okay and certain churches “fit” certain people, or is it that case that there is ONE church that ALL true Christians are to belong to? What is the justification for this?
3) If there is a right church (or a type of right church), what SIGNS do I look for to find that right one? Is SOLA SCRIPTURA (“scripture alone”, the doctrine that all religious teaching and doctrine is to be found in the Scriptures) a necessary teaching in a church, or is additional reliance on TRADITION necessary to fill apparent gaps? Are SPIRITUAL GIFTS a sign that a church is true, or is that something that ended long ago? What is the justification for this?
I think the issue of the “right” church can be made easier if it is determined whether the church was supposed to be unchanging and universal or if it is supposed to change with the time and place it occupies to more efficiently conduct ministry and fellowship. If the former is true, we should model churches off how churches were in the earliest times of Christianity, but that is a hard task today as some information from that time period is missing. If the latter is true, then it may make the task easier, but some sort of boundary would have to be established where a church is definitively no longer Christian, or else we could easily fall into religious pluralism. It seems that these are questions all Christians should consider.