εις preposition
eis  ice: to or into (indicating the point reached or entered), of place, time, or (figuratively) purpose (result, etc.); also in adverbial phrases
ο relative pronoun - accusative singular neuter
hos  hos: the relatively (sometimes demonstrative) pronoun, who, which, what, that -- one, (an-, the) other, some, that, what, which, who(-m, -se), etc.
ετεθην verb - aorist passive indicative - first person singular
tithemi  tith'-ay-mee: advise, appoint, bow, commit, conceive, give, kneel down, lay (aside, down, up), make, ordain, purpose, put, set (forth), settle, sink down.
εγω personal pronoun - first person nominative singular
ego  eg-o': I, me.
κηρυξ noun - nominative singular masculine
kerux  kay'-roox: a herald, i.e. of divine truth (especially of the gospel) -- preacher.
και conjunction
kai  kahee: and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words
αποστολος noun - nominative singular masculine
apostolos  ap-os'-tol-os: a delegate; specially, an ambassador of the Gospel; officially a commissioner of Christ (apostle) (with miraculous powers) -- apostle, messenger, he that is sent.
και conjunction
kai  kahee: and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words
διδασκαλος noun - nominative singular masculine
didaskalos  did-as'-kal-os: an instructor (genitive case or specially) -- doctor, master, teacher.
εθνων noun - genitive plural neuter
ethnos  eth'-nos: a race (as of the same habit), i.e. a tribe; specially, a foreign (non-Jewish) one (usually, by implication, pagan) -- Gentile, heathen, nation, people.