He absolutely did, and we absolutely do also, agreed. The difference is the Holy Spirit did not do general indwelling in people of the OT. He was there and working and indwelling certain chosen individuals, but was not indwelling in all, as he is nowadays, after Jesus's resurrection. This is a total blessing upon us now. Life must have been hard, and the Lord not so easy to find back then.
I have read in the book of Enoch (or was it Jasher?) that Abraham also went through the firey furnace, just like Shadrach, Meshach, and abednego did...and of course he lived because he walked in total faith. I realize that these books are not canon so this is not something to be laid down as fact, but I did find it highly interesting, and also highly believable, considering Abraham. Just thought I'd share that. It could have happened. Isaiah almost did not make it into the canon you know, or Revelation!
(Thank you NC!)