Isa 41:15 Behold, I will make thee a new sharp threshing instrument having teeth: thou shalt thresh the mountains, and beat them small, and shalt make the hills as chaff.
God has made us that weapon here on earth. We have been weaponized for having teeth.
We beat mountains small. There are no obstacles in our way. We swallow them up.
The believer is the victorious one! We don’t look at how big the mountains are, we don’t consider the wind, we don’t consider the deadness of the situation! We disregard them and declare what we desire and much more we call those things that be not as though they were! That is the way of faith. That is how we thresh mountains with our mouths.