The enemy yields only what he must. He yields only what is taken, therefore the ground must be taken step by step. Prayer must be definite. He yields only when he must, therefore the prayer must be persistent. He continually renews his attacks, therefore the ground taken must be held against him in the Victor’s name. This helps to understand why prayer must be persisted in after we have full assurance of the result, and even after some immediate results have come, or after the general results have