I Samuel 19:5 For he did put his life in his hand, and slew the Philistine, and the LORD wrought a great salvation for all Israel: thou sawest it, and didst rejoice: wherefore then wilt thou sin against innocent blood, to slay David without a cause?
Nothing great happens until someone is willing to put their life into their hand. David saw the Lord bring a great salvation and cause great rejoicing even on the part of Saul the king who hates him.
It all starts with someone that loves God enough to be willing to risk their life. It is God that brings the victory but victory doesn’t come until someone steps out by faith and lets God do something.
How many people never give their live to be a missionary for fear of learning a language, leaving home, getting involved in another culture, raising their support etc? Great blessings will not come until you step on nothing and allow God to prove Himself in your life.