In this sermon, Mel Purvis teaches the nature, weight, and power of intercessory prayer, which he calls the highest form of prayer. He contrasts the spiritual tragedy of a prayerless society with the biblical pattern of men and women who stood "between God and the need," turning aside wrath, shaping history, and bringing deliverance. Purvis uses Scripture, history, testimonies, and pastoral counsel to show that intercession requires a sober view of sin, a burden from God, persistence in faith, willingness to suffer personal change, and a readiness to put practical action behind prayer. Above all, he urges the church to seek the spirit of prayer, for God moves in response to those who cry out with the heart of Moses, Paul, and Jesus Himself.