APOSTLE

What Is the Biblical Definition of an Apostle?
This word is related to a Greek verb, apostello, meaning "to send away, to send forth." It is used in several senses in the New Testament. 
  • Christ was God's "apostle," sent from heaven to reveal the divine will and to provide atonement for sin (Heb. 3:1). 
  • The term "apostle" is used for a select group of men chosen by Jesus to do special work on his behalf. The Twelve, in particular, held a unique and significant role. Of these, Judas perished (Jn. 17:12; Acts 1:25) and was replaced by Matthias (Acts 1:21ff). Finally, Paul was selected as an apostle "out of due season" (Acts 9:15; 1 Cor. 15:8). 
  • The term "apostle" was also used in a generic sense, referring to messengers who were assigned various duties. This usage highlights the diversity of roles within the early Christian community. Among these were Barnabas (Acts 14:4, 14), and Silvanus and Timothy (1 Thes. 2:6). 
There are no apostles today, in the special sense of the Twelve and Paul, and claims of such (e.g., in Mormonism) are fallacious.
Adapted from the book "Bible Words and Theological Terms Made Easy" by Wayne Jackson