From Ron at Blessed Economist.
Life on earth is enveloped in spiritual warfare. On one side are the Holy Spirit and the holy angels. They concentrate on doing good and advancing the purposes of God. Arrayed against them are the spiritual rulers and the dark forces of evil. They strive to obstruct Gods purposes and attempt to work as much evil as possible.
God’s authority prevails in the spiritual dimension. His authority was not affected by the fall, so this battle changes nothing in the heavenly places. In the spiritual dimension both sides must abide by God’s rules.
The outcome of the spiritual struggle is manifested on earth. When the light side wins the struggle, peace and plenty prevail on earth. When the dark side is on top, trouble and tribulation will be prevalent.
The outcome of the spiritual struggle is not determined by numbers. If it were, the light side would win, because good angels out number evil angels two to one. The outcome is not determined by force. If it were, the Holy Spirit would win hands down. The outcome of the spiritual struggle on earth is not determined by numbers or force, but by authority.
God has given authority on earth to humans. The outcome of the spiritual battle depends on which side is given the greatest authority by people on earth.
Authority on earth in spiritual realm is determined on earth by numbers of believers, faith and words declaring God’s purposes.
If enough people are following Jesus, praying in faith, and declaring God’s purposes, the Holy Spirit and the holy angels will have the authority they need to hold the dark side in check. It does not have to be the majority. In fact, the greater their faith, the smaller the number of faithful people can be. On the other hand, if too many people on earth are giving authority to the dark side, it will win the spiritual battle and the Holy Spirit and the holy angels will be constrained.