Book of Joel Chapter 2 Vs. 24

 The Lord Had Pity

And the floors shall be full of wheat, and the fats shall overflow with wine and oil. Joel 2:24

The abundance of the harvest will be evidenced by the threshing floors and wine and oil vats being filled to capacity (Joel 2:24).

And the floors... The churches of Christ, which will now be in Judea, and in the Gentile world, which are his floors (Mat. 3:12). And which will be set up everywhere through the preaching of the Gospel.

The descent of the former and latter rain; these will be full of precious souls gathered in. Compared to wheat, and of the choice and excellent, doctrines of the Gospel, and of all spiritual provisions (Mat. 13:30).

גֹּרֶן

gôren

go'-ren

From an unused root meaning to smooth, a threshing floor (as made even); by analogy any open area: - (barn, corn, threshing-) floor, (threshing-, void) place.

shall be full...

מָלָא מָלֵא

mâlê' mâlâ'

maw-lay', maw-law'

A primitive root, to fill or (intransitively) be full of, in a wide application (literally and figuratively): - accomplish, confirm, + consecrate, be at an end, be expired, be fenced, fill, fulfil, (be, become, X draw, give in, go) fully (-ly, -ly set, tale), [over-] flow, fulness, furnish, gather (selves, together), presume, replenish, satisfy, set, space, take a [hand-] full, + have wholly.

of wheat...

בַּר בָּר

bâr bar

bawr, bar

From H1305 (in the sense of winnowing); grain of any kind (even while standing in the field); by extension the open country: - corn, wheat.

and the fats... With the wine of Gospel doctrine, and the oil of true grace; there shall be a flow, an overflow, a redundancy of these. Both in the ministers of the word and private Christians, in whom the grace of God shall abound (see Rom. 5:20).

יֶקֶב

yeqeb

yeh'-keb

From unused root meaning to excavate; a trough (as dug out); specifically, a wine vat (whether the lower one, into which the juice drains; or the upper, in which the grapes are crushed): - fats, presses, press-fat, wine (-press).

In this, we see the results of the abundant rain on the crops. This is also speaking of the abundance of the Spirit bringing many into the kingdom of God. Wheat symbolizes the Christians. Wine and oil symbolize the Holy Spirit of God.

The abundance of the harvest by Christians through the Holy Spirit will be evidenced by the threshing floors (True Churches) and wine and oil vats being filled to capacity by God and the Holy Spirit (Joel 2:24).