πολιτεύω more frequently as depon. -ομαι, and so in LXX and NT

(πολίτης), [in LXX: Est.8:13, 2Ma.6:1 2Mac 11:25, 3Ma.3:4 3Mac 3:1-30; 4Ma.4:1-26 * ;]

to be a citizen, live as a citizen: metaphorically, of conduct as based on heavenly citizenship, Act.23:1, Php.1:27.†

(AS)

to be a citizen; live as a citizen