Three days. That is how long Israel had been free when the singing stopped. Three days after the Red Sea split in half, after the greatest rescue in the history of the world, God's people were standing in the desert with nothing to drink, staring at a pool of water too bitter to swallow. They named the place Marah, "bitter". And it was there, of all places, that God introduced Himself by a brand new name!
God Gives Himself a Name
In Exodus 15, Moses cries out to the Lord, and God shows him a tree. Moses throws the tree into the bitter water and the water turns sweet (Exodus 15:25). And then God says something remarkable: "I am the LORD that healeth thee" (Exodus 15:26). Jehovah Rapha. The God Who Heals.
Notice where He said it. Not in the promised land. Not at a celebration. At Marah! God did not wait for His people to reach somewhere pleasant before revealing this name. He revealed it standing over the bitter water, because that is exactly where people need to know it.
What He heals
The word rapha shows up all over the Old Testament, and it is bigger than we usually make it. Yes, it means the healing of bodies, and I believe God still heals bodies! The Gospels are full of Jesus doing exactly that, to the point where Matthew looks back at the healings and quotes Isaiah: "Himself took our infirmities, and bare our sicknesses" (Matthew 8:17).
But rapha is also the word God uses for broken hearts (Psalm 147:3), for backsliding (Hosea 14:4), for land (2 Chronicles 7:14), even for bitter water. Jehovah Rapha heals bodies, and He also heals the things no doctor can reach: the grief that will not close, the marriage that went bitter, the memory you cannot drink from without wincing. The first thing He ever healed with this name was not a person. It was a bitter place.
He usually uses a tree
Do not miss how the healing at Marah actually happened. God did not snap His fingers. He showed Moses a tree, and Moses had to throw it in (Exodus 15:25). The healing was God's. The means looked ordinary!
That pattern runs all the way through Scripture. Naaman the Syrian general wanted a dramatic healing, and God told him to go wash in a muddy river seven times, and he almost stormed off because the instruction was too ordinary (2 Kings 5:11-12). Hezekiah was healed after a lump of figs was laid on the boil (2 Kings 20:7). Jesus healed with a word, and He also healed with mud and a walk to a pool (John 9:6-7). When God points you toward a counselor, a physician, a medication, a hard conversation, or a long season of showing up to church when you do not feel like it, that is not a lack of faith. That is the tree. Throw it in the water.
And of course the pattern points to one tree above all of them. "Who his own self bare our sins in his own body on the tree... by whose stripes ye were healed" (1 Peter 2:24). Every bitter pool that has ever turned sweet turned sweet because of that one.
Be honest at Marah
Can I say something pastoral here? Some of you have prayed for healing and are still waiting, and a name like Jehovah Rapha can feel like salt in the wound. I do not know why some healing comes on this side and some waits for the other side. But I know the name was given at Marah, not after it. You are allowed to stand at the bitter water and call Him Healer with tears running down your face. That is not weak faith. That is Exodus 15 faith!
And never, ever let anyone use this name to tell you to walk away from your doctors. God heals through prayer, and He also heals through physicians, medicine, counselors, and time. Luke, who wrote a quarter of the New Testament, was a doctor (Colossians 4:14). Take the tree He shows you.
Walking it out
Bring Him the bitter thing by name. Not "bless me generally", but the actual diagnosis, the actual person, the actual memory. Marah got healed when Moses cried out about Marah! Write the name of your bitter water down if you have to, and pray over it out loud. There is something about naming a thing before God that generic prayers never touch.
Then ask somebody to pray with you. James does not say "if any is sick among you, think positive thoughts". He says call for the elders, let them pray, let them anoint (James 5:14-15). Healing in the Bible is almost never a private transaction. It happens in front of witnesses, because the point was never just the healing. The point was that people would know His name.
And then keep walking: the very next verse after Marah says they came to Elim, where there were twelve springs and seventy palm trees (Exodus 15:27). Twelve springs for twelve tribes! God had an oasis measured out for them one day's walk past the bitter water. The bitter place was real. So was the oasis right behind it. If you are at Marah today, Elim is on the map, whether you can see it from here or not.