ημεις personal pronoun - first person nominative plural
hemeis  hay-mice': we (only used when emphatic) -- us, we (ourselves).
φυσει noun - dative singular feminine
phusis  foo'-sis: growth (by germination or expansion), i.e. (by implication) natural production (lineal descent)
ιουδαιοι adjective - nominative plural masculine
Ioudaios  ee-oo-dah'-yos: Judaean, i.e. belonging to Jehudah -- Jew(-ess), of Judaea.
και conjunction
kai  kahee: and, also, even, so then, too, etc.; often used in connection (or composition) with other particles or small words
ουκ particle - nominative
ou  oo: no or not -- + long, nay, neither, never, no (man), none, (can-)not, + nothing, + special, un(-worthy), when, + without, + yet but.
εξ preposition
ek  ek: a primary preposition denoting origin (the point whence action or motion proceeds), from, out (of place, time, or cause literal or figurative; direct or remote)
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.
αμαρτωλοι adjective - nominative plural masculine
hamartolos  ham-ar-to-los': sinful, i.e. a sinner -- sinful, sinner.