First I would emulate the fact that God is almighty and all powerful. Also on His promise with Abraham, Jacob, and Isaac.
God used His mighty power to get them out of Egypt.
To pray the promises of God is to know God's word. and All His promises are "yes" and 'Amen"
knowing the Bible is my first line of defense in the Armor of God the sword is the Word of God that is how I need to fight. If it is God's word God is truth Justice and Never changes and everything that comes from God can be believed. God says you have not cause you ask not.
praying will put us in relationship with God and that is what He wants.