How do you get a fixed, or established, heart? Stay in the Word. Stay in the water. If you're having trouble trusting God in some area, fix your heart on what the Word of God says about that.

For example, I used to have trouble trusting God for finances. I had a problem giving tithes and offerings, because it always seemed to me that I needed my money a whole lot more than God needed it. Since the Bible says God owns the cattle on one thousand hills (Psalm 50:10), I wondered why He needed my little ten percent. I didn't have any trust in what I heard preached from the Word about giving and receiving.

But I knew that my inability to trust God to get my financial needs met was my problem, not His. Fortunately, I'd been taught to go to the Word to get help to solve a problem, so that's what I did. I said, "Let's get in the Word and see what it says about trusting God for finances, about tithing and giving offerings, about giving and receiving."

So I flooded my mind and my heart with what the Word says about those areas where I was having trouble trusting God. And the more Word that came into my heart, and the longer I stayed in the water, the more roots I developed. I became more established and now I can trust God for finances.

At first, I could not trust Him, because my heart was not fixed. But now that my heart is fixed and established on God's Word about finances, I can see that I am not troubled when the devil attacks my finances or when there is some lack or financial need in my life.

I don't have to be afraid of some bad report, some "evil tidings," about the stock market or the economy or unemployment, because having my heart fixed on God's Word defeats fear. I am not afraid of evil tidings because my heart is fixed, trusting in the Lord (Psalm 112:7).

Child of God, the only way to trouble your trouble is with the Word of God. And you can't use the Word as a weapon to overcome trouble until you become rooted and grounded in it. But before you can become rooted in something, you have to develop roots. And developing roots requires staying in the water of the Word long enough to become fixed and established in it.

Get in the Word and stay in it until the answer comes. Stay with the Scriptures that speak to your need until you get results. Be patient; be consistent. The Bible promises that if you will stay in the Word, victory will come. "This book of the law, the Word of God, shall not depart out of thy mouth; but thou shalt meditate therein day and night, that thou may observe to do according to all that is written therein: for then thou shalt make thy way prosperous, and then thou shalt have good success" (Joshua 1:8).

Don't be surprised if, as you first begin learning these scriptural weapons and getting rooted and established in them, you seem to be having more trouble than ever. Remember, the devil is out to steal the Word from you. But if you are consistent and patient about staying in the water until you grow roots in the Word and get your heart fixed on it, your victory will come.

Then once you develop roots, you will bear fruit. While you're in the process of staying in the water and developing roots, pray the following prayer daily:
Father, in the name of Jesus, Jesus said that He has given me peace through what He has said. He said that in this world I will have tribulation, but that I should be of good cheer because He has overcome the world. If Jesus has overcome the world, then I can overcome the world because the Bible says this is the victory that overcomes the world, even my faith. Thank you, Lord, I overcome the world with my faith. And, Father, I thank You in the name of Jesus that they that live godly shall outlast persecution. I am outlasting all persecution today no matter what is coming to me. I will outlast it today, and I will come out with great victory. Thank You, Lord, my heart is being fixed on that right now. I am trusting You, Father, that I'm overcoming trouble right now, and I am establishing in my heart that although trouble comes, it doesn't have to overcome. I'm establishing in my heart that I'm the overcomer of trouble and trouble is not the overcomer of me. I trust You, Lord, and I'm delighting in Your commandments, and therefore, wealth and riches shall be in my house. I am planting the seed of the Word of God in my heart, and I thank You, Lord, that I will not be moved forever. In the name of Jesus. Amen.
Source: How To Trouble Your Trouble by Creflo A. Dollar, Jr.
Excerpt permission granted by Harrison House Publishers