You must first allow God to do a work in you before He can do a work through you--this of course requires waiting with worthiness. You see, we often get frustrated with the delays that we experience and begin to worry, which stunts the work that God wants to do in us. Therefore, when we learn to wait on the Lord, He uses the delays as His best tool for character development. And soon after He works His will in us, He then can work His will through us.