NET
6 Then all those living in Egypt will know that I am the Lord because they were a reed staff for the house of Israel;
Darby
6 And all the inhabitants of Egypt shall know that I [am] Jehovah, because they have been a staff of reed to the house of Israel.
KJV
6 And all the inhabitants of Egypt shall know that I [am] the LORD, because they have been a staff of reed to the house of Israel.