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.
εγνωσαν verb - second aorist active indicative - third person
ginosko  ghin-oce'-ko: to know (absolutely) in a great variety of applications and with many implications (as follow, with others not thus clearly expressed)
οτι conjunction
hoti  hot'-ee: demonstrative, that (sometimes redundant); causative, because -- as concerning that, as though, because (that), for (that), how (that), (in) that, though, why.
τον definite article - accusative singular masculine
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
πατερα noun - accusative singular masculine
pater  pat-ayr': a father (literally or figuratively, near or more remote) -- father, parent.
αυτοις personal pronoun - dative plural masculine
autos  ow-tos': the reflexive pronoun self, used of the third person , and (with the proper personal pronoun) of the other persons
ελεγεν verb - imperfect active indicative - third person singular
lego  leg'-o: ask, bid, boast, call, describe, give out, name, put forth, say(-ing, on), shew, speak, tell, utter.