Parallel
Mark 4:29
Nestle 1904 Greek New Testament · Berean Standard Bible
ὅταν δὲ παραδοῖ ὁ καρπός εὐθὺς ἀποστέλλει τὸ δρέπανον ὅτι παρέστηκεν ὁ θερισμός
And as soon as the grain is ripe, he swings the sickle, because the harvest has come (note: See Joel 3:13, including LXX.).”