Faith is not a must on God. God is not obligated to do just because you have faith, this is because God loves you more than your faith and won't let you have your way outside his will just because you have faith.
The three Hebrew boys had faith that God could deliver them but still said, "even if He doesn't deliver us, we won't bow to the graven image". That was submission before faith.
It's wisdom to enquire first in what actually the will of God is before warfare so you won't be fighting in a direction opposite to God.
This means, you can believe and still not receive. God can't say you didn't believe enough. Listen, you believed enough but did not believe correctly.....
When you have faith in God's power....
Also have faith in God's wisdom....
People insist on God to do what they want because God can do all things....
God will insist on doing what he wants because He knows all things.........
Your knowledge is just limited to now but God knows now and knows later.
Learn to have faith not just in God's power but also on God's wisdom....
This is what I call, the other side of faith.
I hope this made sense!