Isaiah 55 announces a breathtaking invitation from God: “Come, all who are thirsty… come without money and without cost.” It’s the offer of grace, satisfaction, and life that no one can earn—but everyone can receive. Yet the passage also carries urgency: “Seek the LORD while He may be found; call on Him while He is near.” This sermon explores God’s open invitation to abundant life, the power of His Word that never returns empty, and the call to respond while His grace stands ready. The offer is free—but it won’t stay open forever.