When Timothy was ready to carry heavier responsibility, Paul left him in Ephesus, entrusting him with the authority to appoint congregation overseers and ministerial servants. ​ — 1 Tim. 1: 3; 3: 1 - 10, 12, 13; 5: 22.
او در اوّلین سفر میسیونری خود مَرقُس جوان را آموزش داد .‏