NET
18 For you have not come to something that can be touched, to a burning fire and darkness and gloom and a whirlwind
Darby
18 For ye have not come to [the mount] that might be touched and was all on fire, and to obscurity, and darkness, and tempest,
KJV
18 For ye are not come unto the mount that might be touched, and that burned with fire, nor unto blackness, and darkness, and tempest,