The word of God is powerful, and it's sharper than a twp-edge sword when spoken by the breath of a believer. Jesus never thought the devil away; He spoke the devil away by what's been written. To pray is to speak. The sword of the spirit is the spoken word of God backed by the anointing. there is life and death in the power of the tongue. To sow in the spirit is to speak or sing the words of GOD; reaping life because what you speak is what you eat. When you speak the words of GOD, which are light, you begin to eat light, exposing and removing the presence of darkness. remember, the word of GOD is activated when spoken. Be still and know that he is GOD, and watch the power of these prayers change your circumstances.