THE Lord frequently taught His disciples that they must pray, and how; but seldom what to pray. This he left to their sense of need, and the leading of the Spirit. But here we have one thing He expressly enjoins them to remember: in view of the plenteous harvest, and the need of reapers, they must cry to the Lord of the harvest to send forth labourers.
Just as in the parable of the friend at midnight, He would have them understand that prayer is not to be selfish; so here it is the power through which blessing can come to others. The Father is Lord of the harvest; when we pray for the Holy Spirit, we must pray for Him to
prepare and send forth labourers for the work.