"Is it I?” askers (8)

I believe the answer is:

apostles

(Other definitions for apostles that I've seen before include "Followers or faith teachers - the Gospels name 12" , "preachers" , "Christ sent twelve of them to preach the gospel" , "Followers of Jesus" , "Twelve disciples chosen by Christ" .)

I've seen this clue in The Wall Street Journal.

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