Numbers 33:8

“And they departed from before Pihahiroth, etc.] Being forced by Pharaoh’s army pressing upon them: and passed through the midst of the sea; from shore to shore, as on dry laud: into the wilderness: that part of it which lay on the other side, for still it was the wilderness of Etham they went into, as follows: and went three days’ journey in the wilderness of Etham, and pitched in Marah; so called from the bitterness of the waters there, and which is computed to be forty miles from Pihahiroth.”

“Marah--thought to be Ain Howarah, both from its position and the time (three days) it would take them with their children and flocks to march from the water of Ayun Musa to that spot.”

“This list was written out by Moses at God’s command Numbers 33:2, doubtless as a memorial of God’s providential care for His people throughout this long and trying period. Numbers 33:3-6. For these places, see the marginal reference. Numbers 33:8 Pi-hahiroth - Hebrew “Hahiroth,” but perhaps only by an error of transcription. However, the omitted “pi” is only a common Egyptian prefix. Wilderness of Etham - i. e., that part of the great wilderness of Shur which adjoined Etham; compare Exodus 15:22 note. The list of stations up to that at Sinai agrees with the narrative of Exodus except that we have here mentioned Numbers 33:10 an encampment by the Red Sea, and two others, Dophkah and Alush…”

“departed: Exo 14:21, Exo 14:22-31, Exo 15:22-26 Etham: Called Shur in Exodus; but Dr. Shaw says that Shur is a particular district of the wilderness of Etham. Numbers 33:9”