This flop is an excellent candidate for a semi-bluff. You could not get a more perfect flop for your hand without hitting and you have great equity against even the top of his range should villain shove over your raise. Against top set you are 40%, against top two pair it's 50 / 50. Even against a flopped nut straight you have 48.5% with 12 outs to win and 3 to chop. If villain only has one pair right now, you have potentially 21 outs. On top of that, Jack high isn't beating much in his range, except potentially T9, so getting a fold would be a good outcome. 

While the turn card is one of the worst, I still think you have the odds to call getting over 3:1 in direct odds so you need just a little over 20% equity. It's true you could be drawing dead against a boat, but he doesn't need a boat to continue here.