ανοιξας verb - aorist active passive - nominative singular masculine
anoigo  an-oy'-go: to open up (literally or figuratively, in various applications) -- open.
δε conjunction
de  deh: but, and, etc. -- also, and, but, moreover, now (often unexpressed in English).
πετρος noun - nominative singular masculine
Petros  pet'-ros: as a name, Petrus, an apostle -- Peter, rock.
το definite article - accusative singular neuter
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
στομα noun - accusative singular neuter
stoma  stom'-a: edge, face, mouth.
ειπεν verb - second aorist active indicative - third person singular
epo  ep'-o: to speak or say (by word or writing) -- answer, bid, bring word, call, command, grant, say (on), speak, tell.
επ preposition
epi  ep-ee': meaning superimposition (of time, place, order, etc.), as a relation of distribution (with the genitive case), i.e. over, upon, etc.; of rest (with the dative case) at, on, etc.; of direction (with the accusative case) towards, upon, etc.
αληθειας noun - genitive singular feminine
aletheia  al-ay'-thi-a: truth -- true, truly, truth, verity.
καταλαμβανομαι verb - present middle indicative - first person singular
katalambano  kat-al-am-ban'-o: to take eagerly, i.e. seize, possess, etc. -- apprehend, attain, come upon, comprehend, find, obtain, perceive, (over-)take.
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.
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.
εστιν verb - present indicative - third person singular
esti  es-tee':  he (she or it) is; also (with neuter plural) they are
προσωποληπτης noun - nominative singular masculine
prosopoleptes  pros-o-pol-ape'-tace: an accepter of a face (individual), i.e. (specially), one exhibiting partiality -- respecter of persons.
ο definite article - nominative 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.
θεος noun - nominative singular masculine
theos  theh'-os: a deity; figuratively, a magistrate; by Hebraism, very -- exceeding, God, god(-ly, -ward).