I know Jesus has the power to heal all sickness and disease, and he can do so at any time. However, Jesus doesn’t always heal every infirmity so I preface my prayers with, “Lord, if it’s your will…” A man with leprosy used a different approach when he came and knelt before Jesus and said, “Lord, if you are willing, you can make me clean. Jesus reached out his hand and touched the man. “I am willing,” he said. “Be clean!” Immediately he was cured of his leprosy” (Matt 8:2-3 NIV). My sense is there is a difference between Jesus being willing to heal vs. His will that someone be healed. The Canaanite woman with the demon possessed daughter comes to mind. It doesn’t appear it was the Lord’s will to heal the child until He saw the mother’s great faith; then He was willing to grant the mother’s request. (Matt 15:21-28).