To believe that God can act in our life in mighty ways is not easy. There are many factors that keep us in doubt and from being able to live fully as if God is really in control. Factors like the economy, health issues, jobs, family situations, self doubt, past failures, cynical people, discouragement and others will make it hard to Believe God.

Gideon was a man that had doubts. In Judges Ch 6 Gideon is talking with the Lord
12The angel of the LORD appeared to him and said to him, "The LORD is with you, O valiant warrior." 13Then Gideon said to him, "O my lord, if the LORD is with us, why then has all this happened to us? And where are all His miracles which our fathers told us about, saying, 'Did not the LORD bring us up from Egypt?' But now the LORD has abandoned us and given us into the hand of Midian." 14The LORD looked at him and said, "Go in this your strength and deliver Israel from the hand of Midian. Have I not sent you?" 15He said to Him, "O Lord, how shall I deliver Israel? Behold, my family is the least in Manasseh, and I am the youngest in my father's house."
16But the LORD said to him, "Surely I will be with you, and you shall defeat Midian as one man."

Gideon wanted to believe that the battle could be won - but the circumstances looked unfavorable and he was doubtful because of fears that he was not able. That is the same way we often approach life - we are fearful because of the circumstances around us - and we base decisions on our abilities instead of trusting in God's.

God tells Gideon "have I not sent you". God is saying when we are acting in God's will we can believe in His power and His faithfulness to act. If it all depended on Gideon he was right to fear - but when we are following God it is His strength that overcomes all obstacles. Let us seek the will of God and then Believe Him to do great things.