presbuteros

At its plainest this word simply means older. Greek formed it from the word for an old man, and in this sense it describes someone advanced in years, the older of two people, or the oldest in a group. It can name an older man or an older woman, and it is the natural word for the elder of two brothers.

From there it stretches one step further in time. The same word names the people of an earlier generation, the forebears who came before. When the Gospels speak of the tradition of the elders, they do not mean the leaders of the day but the revered ancestors whose customs were handed down. When Hebrews says the elders were commended for their faith, it means the men and women of old, the long line of believers before Christ.

So the thread running through this meaning is simply age and seniority, whether of a living older person or of the generations already past. This is distinct from the word's other, official sense, where it names a recognized leader rather than describing someone's years.

This is the word's official meaning. An elder here is not merely an older person but someone who holds a settled place of authority, a leader recognized by the community. The seniority that the word carries in its plain sense has hardened into a title.

The New Testament uses it for three groups. Among the Jewish people, the elders are the lay leaders who sit with the chief priests and the teachers of the law, the body that the Gospels and Acts repeatedly show opposing Jesus and later the apostles. In the early church, the elders are the appointed overseers of local congregations, the leaders Paul and the others install, instruct, and ask people to honor. And in the visions of Revelation, twenty-four elders sit enthroned around God, a heavenly company who worship and represent the redeemed.

All three uses share the same idea: a recognized standing of authority and honor within a community, whether the council of Israel, the leadership of a congregation, or the court of heaven.