Easton's Bible Dictionary
Leaving Rephidim, the Israelites advanced into the wilderness of Sinai (Exodus 19:1,2; Numbers 33:14,15 ), marching probably through the two passes of the Wady Solaf and the Wady esh-Sheikh, which converge at the entrance to the plain er-Rahah, the "desert of Sinai," which is two miles long and about half a mile broad. (See SINAI; MERIBAH .)
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain.
Easton, Matthew George. Entry for 'Rephidim'. Easton's Bible Dictionary. https://www.studylight.org/dictionaries/eng/ebd/r/rephidim.html. 1897.