Acquire no gold, nor silver, nor copper for your belts, no bag for your journey, nor two tunics nor sandals nor a staff, for the laborer deservers his food.
Jesus sends out his disciples on a supernatural journey in which they would be using his authority to cast out demons, healing the sick, raising the dead, and bringing back the lost sheep of Israel.
All of those are supernatural occurances and all of which, as Jesus highlights here, require a supernatural lifestyle from which those things will overflow. And if I can take a guess as to why we don’t see miracles as often as we do, I would say that we lack the supernatural lifestyle which Jesus is instructing his disciples to live.
His language may be archaic, so allow me to update.
When you do the mission of God, don’t bring any money, don’t bring a sleeping bag, don’t bring a backpack, don’t bring a sweatshirt, don’t bring extra clothes. All these things will be provided for you by faith.
You see, in order to the mission of God, he requires that those who would want to see fruit would live on the edge of their faith. He has no room for self-reliance. It’s all given up to the sovereign hand of the Father.