The harvest Jesus sends these workers into is interesting. It is plentiful. Serving in the harvest is a joyful experience. But, there is a shortage of workers. Why? One reason might be that you harvest like sheep among wolves. You can get killed, eaten alive, in this harvest!
In principle, Jesus instructs his deputies to work with those who are responsive. Don't waste time on the disinterested. This is instructive for any of us who are trying to serve in Jesus' stead.
The delegated authority of Jesus that made the demons subject to them and caused Satan to fall from heaven is ours, too. We are to pray, "in his name." We are to use his authority as we pray. The Great Commission in Matthew 28:18-20 is all about the delegated authority of Jesus. I underestimate the spiritual authority that a Christ-follower on Christ's mission possesses. Wow!