Parallel
Exodus 15:23
Westminster Leningrad Codex · Berean Standard Bible
וַיָּבֹ֣אוּ מָרָ֔תָה וְלֹ֣א יָֽכְל֗וּ לִשְׁתֹּ֥ת מַ֙יִם֙ מִמָּרָ֔ה כִּ֥י מָרִ֖ים הֵ֑ם עַל־ כֵּ֥ן קָרָֽא־ שְׁמָ֖הּ מָרָֽה׃
And when they came to Marah (note: Marah means bitter.), they could not drink the water there because it was bitter. (That is why it was named Marah.)