Joshua - This is the first mention of the great follower and successor of Moses. He died at the age of 110, some 65 years after this transaction. His original name was Hosea, but Moses calls him by the full name, which was first given about forty years afterward, as that by which he was to be known to succeeding generations. From this it may perhaps be inferred that this portion of Exodus was written, or revised, toward the end of the sojourn in the wilderness.
The rod of God - See Exodus 4:20. The hill is supposed to be the height now called Feria an the north side of the plain Er Rahah; (or, Jebel Tahuneh over Feiran. Palmer).