Josh Duggar -- Dad Stuck By Me in Good Times ... and Hard (VIDEO)

Josh Duggar stepped out of the shadows and into the frizzy light, thanking his dad for his unwavering support.

Josh delivered the video message to Jim Bob on Father's Day, chronicling his life from what everyone thought were innocent times until now.

His voice shows very little emotion ... he never mentions the molestations but it's undeniably the 800 lb elephant in the room.

As TMZ reported, the chances are faint -- extremely faint -- that "19 Kids and Counting" will come back.