believe

In John 11 Mary & Martha told Jesus to not roll the stone away from Lazarus' tomb b/c Lazarus had been dead for 4 days & would stink.

Then, in verse 40, Jesus said, Didn't I tell you that you would see God's glory if you believe?

And then He raised Lararus from the dead.

And Jesus promises us the same thing, that if we believe, we'll see God's glory, that He'll raise that thing(s) in our life that we think is so dead that it stinks.