The quote "An unholy world will never be won to Christ by an unholy church" from Randy Alcorn's book, "The Purity Principle: God's Safeguards for Life's Dangerous Trails," emphasizes the importance of purity and holiness within the church. Alcorn suggests that the moral and spiritual integrity of the church is crucial for effectively reaching and influencing the world for Christ. If the church fails to embody the values it preaches, it undermines its mission and testimony.

This statement serves as a reminder that the church must uphold its principles and live out its faith authentically. An unholy church, one that does not reflect the character of Christ, will struggle to lead others to genuine faith. Therefore, adherence to spiritual purity not only strengthens the church internally but also enhances its ability to connect with and transform the surrounding world.