'Apostles' in the Bible

I know your works as well as your labor and steadfast endurance, and that you cannot tolerate evil. You have even put to the test those who refer to themselves as apostles (but are not), and have discovered that they are false.

(Rejoice over her, O heaven, and you saints and apostles and prophets, for God has pronounced judgment against her on your behalf!)

The wall of the city has twelve foundations, and on them are the twelve names of the twelve apostles of the Lamb.