Faith is believing what God says. When you think of it this way, you realize that faith is not complicated. It is not always easy to have faith. Sometimes it is very hard, because life is complicated and confusing. But having faith is simply choosing to believe what God says, even if you don’t understand how that makes sense in your current situation.
God rewards faith. He rewards saving faith (faith in the gospel of Jesus Christ) with eternal life. He continues to reward the saved who walk by faith with the blessing of answered prayer and extraordinary blessing. If you want to see God solve big problems and meet enormous needs in our life, then you must have faith that God can and will do it.