Exodus 15:23

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.

Cross References

Numbers 33:8

And setting out from Pi-hahiroth, they crossed through the middle of the Sea into the wilderness. And having walked for three days through the desert of Etham, they made camp at Marah.

Ruth 1:20

But she said to them, "Do not call me Naomi (that is, beautiful), but call me Mara (that is, bitter). For the Almighty has greatly filled me with bitterness.