וַיִּסְע֖וּ מֵרְפִידִ֑ם וַֽיַּחֲנ֖וּ בְּמִדְבַּ֥ר סִינָֽי׃
And they journeyed from Rephidim, and pitched in the wilderness of Sinai.
Read Kabbalistic (mystical) interpretations of Numbers 33:15: Zohar and classical Jewish mystical sources, free online.