John Wesley on Matthew 9:38

The Lord of the harvest - Whose peculiar work and office it is, and who alone is able to do it: that he would thrust forth - for it is an employ not pleasing to flesh and blood; so full of reproach, labour, danger, temptation of every kind, that nature may well be averse to it. Those who never felt this, never yet knew what it is to be labourers in Christ's harvest. He sends them forth, when he calls them by his Spirit, furnishes them with grace and gifts for the work, and makes a way for them to be employed therein.