Exodus 15:23

Julia E. Smith Translation 1876

And they will come to Marah, and they will not be able to drink the waters of Marah, for they are bitter: for this he called the name bitterness.

Cross References

Numbers 33:8

And they will remove from before Hiroth, and they will pass through the midst of the sea of the desert, and they will go a way of three days in the desert of Etham, and they will encamp in Marah.

Ruth 1:20

And she will say to them, Ye shall not call to me Naomi; call to me, Mara: for the Almighty made bitter to me greatly.