You, Oh Lord, Know the Hearts of All

The sermon centers on the divine sovereignty and heart-knowledge of God, illustrated through the selection of Matthias to replace Judas, emphasizing that only God can discern true hearts. It highlights Peter's transformation from a flawed, impulsive disciple to a leader shaped by Christ's patient preparation, demonstrating that spiritual leadership is not about human merit but divine work. The contrast with Judas—externally active yet inwardly unrepentant—serves as a sobering reminder that outward religious activity without heartfelt surrender is insufficient, and that true faith requires repentance, not mere regret. The passage underscores the necessity of prayer, unity, and reliance on God's guidance in discerning His will, especially in leadership matters, and calls believers to examine their own hearts, repenting where needed and surrendering fully to Christ's lordship.