ἐξετάσατε [1 verse](2nd pl aor imperat act) "Enquire" is exetazo, which means to "search out," "examine well or closely," "scrutinize," "review," "pass in review," "enumerate," "prove by scrutiny or test." -- "Enquire" is a word that has the sense of a more serious investigation than simply asking someone in passing. Christ only uses this word once, here.