Exodus 13:18 preserves “Sea of Reeds” and “armed,” while the LXX’s “in the fifth generation” is a later interpretive gloss without Hebrew support.
Old Testament Textual Commentary on Exodus 10:19
Exodus 10:19 shows Jehovah driving the locusts into the “Sea of Reeds,” preserved in the Hebrew text, not the LXX’s “Red Sea.”

