For you are not come unto the mount that might be touched, and that burned with fire, nor unto blackness, and darkness, and tempest,
All Commentaries on Hebrews 12:18 Go To Hebrews 12
John Chrysostom
AD 407
Wonderful indeed were the things in the Temple, the Holy of Holies; and again awful were those things also that were done at Mount Sina, the fire, the darkness, the blackness, the tempest. cf. Deuteronomy 33:2 For, it says, God appeared in Sina, and long ago were these things celebrated. The New Covenant, however, was not given with any of these things, but has been given in simple discourse by God.
See then how he makes the comparison in these points also. And with good reason has he put them afterwards. For when he had persuaded them by innumerable [arguments], when he had also shown the difference between each covenant, then afterwards, the one having been already condemned, he easily enters on these points also.