Adam Clarke on Luke 10:2

That he would send forth - Εκβαλῃ. There seems to be an allusion here to the case of reapers, who, though the harvest was perfectly ripe, yet were in no hurry to cut it down. News of this is brought to the Lord of the harvest the farmer, and he is entreated to exert his authority, and hurry them out; and this he does because the harvest is spoiling for want of being reaped and gathered in. See the notes on Mat 9:37, Mat 9:38.