Since the devil can't defeat us, he all he has to do is to get us to procrastinate so that while we are in the waiting process God's grace shifts from us and then our faith dies. The moment God speaks, there is a grace for us to do what He commands and every word from God contains the faith for us to act on it. That why it's the "Now Faith" when God speaks a word we are to act on it now and not when we feel we are ready.