King James Version
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.New International Version
When they came to Marah, they could not drink its water because it was bitter. (That is why the place is called Marah. )Catholic Public Domain Version
And they arrived at Marah. They were unable to drink the waters of Marah because they were bitter. Therefore, he also established a name befitting the place, calling it ‘Marah,’ that is, bitterness