John Gill Commentary Numbers 33:15

"And they journeyed from Rephidim, and encamped in the wilderness of Sinai." — Numbers 33:15 (ASV)

And they departed from Rephidim, and pitched in the wilderness
of Sinai .
] Eight miles from Rephidim; and from a mount of this name here were given the decalogue, with all other statutes and ordinances, judicial and ceremonial, and orders and directions for building the tabernacle, and making all the vessels appertaining to it, and which were all made during their stay here.