I think in most churches elders are nominated by a member of the congregation and then approved by the pastor or session/board. Is this practice scriptural? I'm not opposed to it, just wondering.

I know that Paul instructed Titus to "appoint" elders, but this is the only passage that I can find where the selection process is described. There are other passages that give the qualifications of an elder/overseer, but none that define how an elder becomes and elder.

What are your thoughts?