The cause for the want of water at Marah had been that for three days the people had neglected the study of the Torah, and it was for this reason that the prophets and elders of Israel instituted the custom of reading from the Torah on Saturday, Monday and Thursday, at the public service, so that three days might never again pass without a reading from the Torah.
From Marah they moved on to Elim. From a distance palm trees made the place look inviting enough, but when the people came close, they were again disappointed; there were not more than three score and ten palm tress, and there were of stunted growth owing to a lack of water, for in spite of the presence of twelve wells of water, the soil was so barren and sandy that the wells were not sufficient to water it. Here again the marvelous intercession of God in favor of the fate of Israel is shown, for the scant supply of water at Elim, which had hardly sufficed for seventy palm trees, satisfied sixty myriads of the wandering people that stayed there for several days.