Exodus 15:23-25 And when they came to Marah, they could not drink of the waters of Marah, for they were bitter: therefore the name of it was called Marah.

ASV_Strongs⁽ⁱ⁾

23 H935 And when they came H4785 to Marah, H3201 they could H8354 not drink H4325 of the waters H4785 of Marah, H4751 for they were bitter: H8034 therefore the name H7121 of it was called H4785 Marah.

24 H5971 And the people H3885 murmured H4872 against Moses, H559 saying, H8354 What shall we drink?

25 H6817 An he cried H3068 unto Jehovah; H3068 And Jehovah H3384 showed H6086 him a tree, H7993 and he cast H4325 it into the waters, H4325 and the waters H4985 were made sweet. H7760 There he made H2706 for them a statute H4941 and an ordinance, H5254 and there he proved them;