Exodus 15:23-25

The Voice

²³ When they came to the place where they did find water, they could not drink it because it was so bitter. So they called the place Marah, or bitter. ²⁴ Because they were very thirsty, the people complained to Moses.

²⁵ Moses then asked the Eternal for help, and the Eternal showed him a log. Moses threw the log into the bitter water, and the water became sweet. At Marah the Eternal established an important principle and set a standard for His people so that He could test them.