He limited God. Jesus said I am the Word. His Word spoken in the mouth of a spirit filled 90lb woman has as much power as when Jesus said it otherwise let's just all go party. There would be no need for the Holy Spirit. Even the newest born again Christian, Spirit-filled, believing can speak and see God's Word come to life.
People go from pool to pool.
And there are others who are in pool maintenance. And they are feeding off the deception and the slothfulness of the poolees, the unbelief of those around the pool. It is a command. It would be great if every new believer had to go through 6 weeks military basic training. A man under authority understands authority and responds.