Bible Meaning: Sea of reeds
Strong's Concordance #H5488, #H3220, #G2063, #G2281
The word translated as "red" in the KJV Old Testament means reeds, rush, or sea of rushes. The word for "sea" comes from the Hebrew that means a sea or other body of water. In the New Testament, the phrase "Red Sea" is only used twice and is derived from the Greek words for red and sea.
Where did they cross?
The Bible is unclear regarding the exact location where God permanently ended Egypt's pursuit of its Israelite slaves. Israel's crossing of the "Red Sea," during the Exodus, is almost certainly not referring to the large body of water we are familiar with today.
The Sinai Peninsula, on modern maps, has the Gulf of Suez as its western border and the Gulf of Aqaba as its eastern border. The Red Sea is considered the body of water south of both Mount Sinai and the peninsula itself. It is too far away from Egypt and from where Israel encamped after leaving Pharaoh (Exodus 14:2, 9) to be the place where God performed one of his greatest miracles.
Israel's crossing either took place on the northernmost part of the Gulf of Suez or on one of the smaller bodies of water (lakes) between it and the Mediterranean Sea. According to Holman's Bible Dictionary, evidence suggests the crossing took place near Lake Timsah that is north of the much larger Great Bitter Lake.
Exodus 15:4, 22
Pharaoh's chariots and his host hath he cast into the sea: his chosen captains also are drowned in the Red sea.
So Moses brought Israel from the Red sea, and they went out into the wilderness of Shur: and they went three days in the wilderness, and found no water.
And they journeyed from mount Hor by the way of the Red sea, to compass the land of Edom: and the soul of the people was much discouraged because of the way.
And what he did unto the army of Egypt, unto their horses, and to their chariots: how he made the water of the Red sea to overflow them as they pursued after you, and how the LORD hath destroyed them unto this day . . .
For we have heard how the LORD dried up the water of the Red sea for you, when ye came out of Egypt . . .
For the LORD your God dried up the waters of Jordan from before you, until ye were passed over, as the LORD your God did to the Red sea, which he dried up from before us, until we were gone over . . .
Our fathers understood not thy wonders in Egypt: they remembered not the multitude of thy mercies: but provoked him at the sea, even at the Red sea.
He rebuked the Red sea also, and it was dried up: so he led them through the depths, as through the wilderness.
Wondrous works in the land of Ham, and terrible things by the Red sea.
To him which divided the Red sea into parts: for his mercy endureth for ever . . .
He brought them out, after that he had shewed wonders and signs in the land of Egypt, and in the Red sea, and in the wilderness forty years.
By faith they passed through the Red sea as by dry land: which the Egyptians assaying to do were drowned.