Jamieson, Fausset and Brown on 2 Timothy 1:11

11. Whereunto--For the publication of which Gospel.

I am appointed--Greek, "I was appointed."

preacher--Greek, "herald."

teacher of the Gentiles--(1Ti 2:7). He brings forward his own example in this verse and 2Ti 1:12, as a pattern for Timothy, as a public "preacher," an "apostle," or missionary from place to place, and a "teacher" in private instructing His flock with patient perseverance.