noun
apostle
uh-PAH-sul/əˈpɑːsl/
A leading messenger and advocate of a faith or cause.
Jesus gives keys to Peter, commissioning him as an apostle.

Etymology
The pieces mean “send forth”: an apostle was a messenger or envoy sent on a mission. In the Christian sense, this describes the followers Jesus sent to preach his Gospel.
In context
chosen by Christ to be an apostle not just to Israel but also to the Gentiles. So there is a message to the Gentiles.
More examples
- The painting depicts Jesus with his apostles.
- She was an early apostle of the new scientific method.
- The congregation studies a letter attributed to an apostle.
Forms
apostle · apostles