NET
23 Then they came to Marah, but they were not able to drink the waters of Marah, because they were bitter. (That is why its name was Marah.)
Darby
23 And they came to Marah, and could not drink the waters of Marah, for they were bitter; therefore the name of it was called Marah.
KJV
23 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.