Emily Dickinson Lexicon

apostle, n. [OE < L. < Gk 'messenger', 'one sent forth'; also entering ME < OFr < L. < Gk.]

1. Paul in the New Testament; author of 1 Corinthians 15; a Roman Jew who became a disciple after the death and resurrection of Jesus Christ.
2. Peter; one of the twelve original disciples of Jesus Christ; author of 1 Peter 1:8.