Exodus 15:23
And when they came to Marah, they could not drink the water there because it was bitter. (That is why it was named Marah.)
Berean Standard Bible
And when they came to Marah, they could not drink of the waters of Marah, for they were bitter: therefore the name of it was called Marah.
When they came to Marah, they couldn’t drink from the waters of Marah, for they were bitter. Therefore its name was called Marah.