When Paul commands us to pray without ceasing, he is simply supporting the principle Jesus taught in Luke 11 and 18 that prayer is to be incessant. We are not heard for our many words but for the cries of our hearts. The man who came to his friend to ask for bread did not recite some formula request; he pleaded for what he needed. The same is true for the widow—she cried out for protection to one who had the power to answer her request. Persistent, continual prayer that comes from the innermost part of your being is what moves the heart of our compassionate, loving God.