Christ has not called us to comfort, but to an exciting, sacrificial and overwhelmingly fulfilling faith. In ''If You're Going to Walk on Water'' John Ortberg teaches us how to step out of the ''boat'' of casual Christianity so that we can faithfully follow the Lord who is calling us out onto the risky, exciting waters of the high seas. Let Pastor Ortberg teach you how to leave your comfort zone for a remarkable life of faith. 278 pages.