78 The Hebrew pronoun is plural, as are the following verbs, indicating that Moses and the people are addressed (note v. 41).
79 Heb “the Reed Sea.” “Reed” is a better translation of the Hebrew סוּף (suf), traditionally rendered “red.” The name “Red Sea” is based on the which referred to it as ἐρυθρᾶς θαλάσσης (eruthras thalassēs, “red sea”). Nevertheless, because the body of water in question is known in modern times as the Red Sea, this term was used in the translation. The part of the Red Sea in view here is not the one crossed in the exodus but its eastern arm, now known as the Gulf of Eilat or Gulf of Aqaba.

In other versions

But as for you, turn, and journey into the wilderness in the direction of the Red Sea.’

But as for you, turn around and set out toward the desert along the route to the Red Sea.”

But you are to turn back and head for the wilderness by way of the Red Sea.’

As for you, turn around now and go on back through the wilderness toward the Red Sea.’

But you turn and set out in the direction of the wilderness by way of the Red Sea.’

But as for you, turn you, and take your journey into the wilderness by the way of the Red sea.

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