You'll have to do the same thing if you're going to win your case against the devil and everything he's trying to do to you and your family. You're going to have to get out your Bible and search the verses that speak directly to your particular situation.
I've had sincere people tell me they are believing God for a miraculous healing. When I ask them what they are basing they're faith on, they say, "I'm standing on the Word."
"Yes, but what part of the Word?"
"Oh, no part in particular. Just the Word in general."
The Word "in general" won't bring you a miracle. Your case will be thrown out for lack of evidence. You need specific evidence from the Bible to bring faiths power on to the scene. And its entirely up to you to find it. No one else can do it for you.
†2 Timothy 2:15 says, "Study to shew thyself approved unto God, a workman that needeth not to be ashamed, rightly dividing the word of truth."
There's the key. Study, study, study, study! Of course it's not easy. It calls for a commitment of time and concentration. But it's the only way you're going to get the evidence you need to win your case.
Why is finding scriptures that speak to your situation so effective? Because when you locate a Bible verse that promises the thing you need, it energizes your prayer with confidence.
God's Word is His will. His will is His Word. If you see it in your Bible, you can know that it's the expressed, perfect will of God for your life.
If you're new to the Bible and don't know how to find specific promises get a good concordance. It will give a list of scriptures for every subject you can imagine.