θεσθε verb - second aorist middle imperative - second person
tithemi  tith'-ay-mee: advise, appoint, bow, commit, conceive, give, kneel down, lay (aside, down, up), make, ordain, purpose, put, set (forth), settle, sink down.
ουν conjunction
oun  oon: (adverbially) certainly, or (conjunctionally) accordingly -- and (so, truly), but, now (then), so (likewise then), then, therefore, verily, wherefore.
εις preposition
eis  ice: to or into (indicating the point reached or entered), of place, time, or (figuratively) purpose (result, etc.); also in adverbial phrases
τας definite article - accusative plural feminine
ho  ho: the definite article; the (sometimes to be supplied, at others omitted, in English idiom) -- the, this, that, one, he, she, it, etc.
καρδιας noun - accusative plural feminine
kardia  kar-dee'-ah: the heart, i.e. (figuratively) the thoughts or feelings (mind); also (by analogy) the middle -- (+ broken-)heart(-ed).
υμων personal pronoun - second person genitive plural
humon  hoo-mone': of (from or concerning) you -- ye, you, your (own, -selves).
μη particle - nominative
me  may: any but (that), forbear, God forbid, lack, lest, neither, never, no (wise in), none, nor, (can-)not, nothing, that not, un(-taken), without.
προμελεταν verb - present active middle or passive deponent
promeletao  prom-el-et-ah'-o:  to premeditate -- meditate before.
απολογηθηναι verb - aorist passive deponent middle or passive deponent
apologeomai  ap-ol-og-eh'-om-ahee : to give an account (legal plea) of oneself, i.e. exculpate (self) -- answer (for self), make defence, excuse (self), speak for self.