Exodus 15:23

Bible in Basic English 1965

And when they came to Marah, the water was no good for drinking, for the waters of Marah were bitter, which is why it was named Marah.

Cross References

Numbers 33:8

And journeying on from before Hahiroth, they went through the sea into the waste land: they went three days' journey through the waste land of Etham and put up their tents in Marah.

Ruth 1:20

And she said to them, Do not let my name be Naomi, but Mara, for the Ruler of all has given me a bitter fate.