Matthew 18:18-20 - Prohibiting And Permitting

18 Truly I tell you, whatever you bind on earth will be bound in heaven; and whatever you loose on earth will be loosed in heaven. 19 Again, truly I tell you, that if two of you agree on earth concerning anything that they will ask, it will be done for them by my Father who is in heaven. 20 For where two or three are gathered together in my name, there I am in the midst of them."