Translation:

82. Out of the mountains did they hew (their) edifices (feeling themselves) secure.

Notes (Tafseer)

2003. Remains of these rock edifices in the Hijr are still found, and the City of Petra is not more than 380 miles from Jabal Hijr. See n. 1043 to vii. 73. "Petra" in Greek means "Rock". For the Inscriptions found there, and their significance, see Appendix IV to S. xxvi.