Meaning: bitter or bitterness
a fountain at the 6th station of the Israelites (Exodus 15:23-24; Numbers 33:8) whose waters were so bitter that they could not drink them
On this account they murmured against Moses, who, under divine direction, cast into the fountain “a certain tree” which took away its bitterness, so that the people drank of it.
Approximate possible location of ancient Marah on the Sinai Peninsula—satellite view
This was probably the the oasis known as Ayun Musa (Mousa) (Moses’ Spring), where there are still several springs of water that are very “bitter.”
Article Version: September 1, 2017