what sea did moses part

Moses is traditionally said to have parted the Red Sea , though the Hebrew phrase Yam Suph is sometimes translated as “Reed Sea,” so some scholars think the location may have been a different body of water, possibly in the Nile delta or near the Gulf of Aqaba.

What most people mean

In common usage, “the sea Moses parted” refers to the Red Sea story from Exodus. The familiar version is the one where the Israelites cross on dry ground and the waters return after them.

Why there is debate

The original Hebrew term Yam Suph can be read in more than one way, which is why you’ll sometimes see “Reed Sea” instead of “Red Sea”. That is why some modern discussions place the crossing in marshy or coastal waters rather than the modern Red Sea proper.

Simple answer

If you want the standard answer: the Red Sea.