Yea not our words, His word.
In the past, God did speak through his prophets but in the last days God spoke through His son. See Hebrews chapter one.
When we are given the gift of the holy spirit, he gives us utterance we can speak...magnifying His name, prophesy, bind and loose spirits..but only accordng to His will. We can be given other gifts of the spirit like healing, interpretation, helps, etc.
We cant just say any old thing and expect God to perform a miracle. Eg say we want a car right now, is that even in Gods will? Did He actually tell you that He was going to give you one or is it just your flesh desiring one.
Elijah was told to speak to the dry bones and they lived. moses was told to speak to the rock and the water would gush out. God did speak and our universe was created. JEsus is the Word. When we speak about Jesus yes we can change reality meaning lives will he saved because of the gospel. HIs word does not return back empty and will accomplish the thing for which it is sent.
Hope this helps. WOF is a strange doctrine, some of it is biblical but some of it is not. Be discerning. I knew WOF adherants that were sucked into it and they just didnt want to be honest about anything because they were scared if their confession was not 'positive' then negative things would happen. So they would rather lie than be what they thought was negative.
Weird.