Jewish Publication Society of America Version (JPS1917) - Exodus 15:23 >

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.

King James Version (KJV) - Exodus 15:23 >

¶ 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.

Berean Study Bible (BSB) - 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.)