Obviously, the word membership does not occur in the Bible, but this does not mean it is an unscriptural word. There are many theological words that describe Bible truths that do not occur in the Bible, such as trinity. For example, the letterhead is biblical for two reasons. First, because we observed in the New Testament that church pastors always knew who their sheep were in fact. For example, Luke tells us the number of sheep. Three thousand people
were added, says at the end of chapter two. Then he says that more were added until there were five thousand men. So they were counting. But the other reason is the teaching of the New Testament. Many of the Bible’ s commands assume that there is a definite membership. For example,
sheep must obey their shepherds and shepherds have a responsibility towards their sheep. Peter also tells the elders to feed the green that is among you taking care of it and then adds not as having, Lordship, on those in your care. But this is only possible if the elder knows who is in his care. Another passage would be matte eighteen. It describes the process of ecclesiastical discipline. He says if anyone in the Church sins against you, you should go
and call her repentance. If he doesn' t regret it, you have two or three witnesses. If you still don' t repent, you tell the whole congregation. Say if you still don' t get him out of the congress. In other words, there is a clear line between those who do and those who do not belong to the church membership.
