αλλα conjunction
alla  al-lah': other things, i.e. (adverbially) contrariwise (in many relations) -- and, but (even), howbeit, indeed, nay, nevertheless, no, notwithstanding, save, therefore, yea, yet.
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).
εστιν verb - present indicative - third person singular
esti  es-tee':  he (she or it) is; also (with neuter plural) they are
το definite article - nominative 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.
ειρημενον verb - perfect passive participle - nominative singular neuter - attic
ereo  er-eh'-o: to utter, i.e. speak or say -- call, say, speak (of), tell.
δια preposition
dia  dee-ah': through (in very wide applications, local, causal, or occasional)
του definite article - genitive 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.
προφητου noun - genitive singular masculine
prophetes  prof-ay'-tace: a foreteller (prophet); by analogy, an inspired speaker; by extension, a poet -- prophet.
ιωηλ proper noun
Ioel  ee-o-ale': Joel, an Israelite -- Joel.