And they removed from Alush, and encamped at Rephidim,.... Eight miles from Alush:

where was no water for the people to drink; and they murmured, and a rock here was smitten by Moses at the command of God, and waters gushed out sufficient for them and their flocks, Exo 17:1.

Dophkah . . . Alush . . . Rephidim--These three stations, in the great valleys of El Sheikh and Feiran, would be equivalent to four days' journey for such a host. Rephidim (Exo 17:6) was in Horeb, the burnt region--a generic name for a hot, mountainous country. [See on Exo 17:1.]