Importunity is a condition of prayer. We are to press the matter, not with vain repetitions, but with urgent repetitions. We repeat, not to count the times, but to gain the prayer. We cannot quit praying because heart and soul are in it. We pray "with all perseverance." We hang to our prayers because by them we live. We press our pleas because we must have them, or die.
Edward McKendree Bounds (1920). “Purpose in Prayer”, p.39, CCEL