Cross reference
Numbers 33:7
7 and they journey from Etham, and turn back on Pi-Hahiroth, which `is' on the front of Baal-Zephon, and they encamp before Migdol.
Exodus 14:2
2 `Speak unto the sons of Israel, and they turn back and encamp before Pi-Hahiroth, between Migdol and the sea, before Baal-Zephon; over-against it ye do encamp by the sea,
Exodus 14:9
9 and the Egyptians pursue after them, and all the chariot horses of Pharaoh, and his horsemen, and his force, overtake them, encamping by the sea, by Pi-Hahiroth, before Baal-Zephon.
Numbers 33:8
8 And they journey from Pi-Hahiroth, and pass over through the midst of the sea, into the wilderness, and go a journey of three days in the wilderness of Etham, and encamp in Marah.