εν preposition
en  en: in, at, (up-)on, by, etc.
παντι adjective - dative singular neuter
pas  pas: apparently a primary word; all, any, every, the whole
ευχαριστειτε verb - present active middle - second person
eucharisteo  yoo-khar-is-teh'-o: to be grateful, i.e. (actively) to express gratitude (towards); specially, to say grace at a meal -- (give) thank(-ful, -s).
τουτο demonstrative pronoun - nominative singular neuter
touto  too'-to: that thing -- here (-unto), it, partly, self(-same), so, that (intent), the same, there(-fore, -unto), this, thus, where(-fore).
γαρ conjunction
gar  gar: assigning a reason (used in argument, explanation or intensification; often with other particles)
θελημα noun - nominative singular neuter
thelema  thel'-ay-mah: a determination (properly, the thing), i.e. (actively) choice (specially, purpose, decree; abstractly, volition) or (passively) inclination -- desire, pleasure, will.
θεου noun - genitive singular masculine
theos  theh'-os: a deity; figuratively, a magistrate; by Hebraism, very -- exceeding, God, god(-ly, -ward).
εν preposition
en  en: in, at, (up-)on, by, etc.
χριστω noun - dative singular masculine
Christos  khris-tos': anointed, i.e. the Messiah, an epithet of Jesus -- Christ.
ιησου noun - dative singular masculine
Iesous  ee-ay-sooce': Jesus (i.e. Jehoshua), the name of our Lord and two (three) other Israelites -- Jesus.
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
υμας personal pronoun - second person accusative plural
humas  hoo-mas': you (as the objective of a verb or preposition) -- ye, you (+ -ward), your (+ own).