Notice how Jacob says "seemed to be" here—while he can't explain it, he's still not willing to admit yet that Emma is generating fire with her bare hands.

Almost anything Jacob has seen thus far could be explained away somehow, but since David Blaine isn't anywhere nearby, levitating dinnerware can only be the result of something supernatural.

Jacob's bravery has its limits. Going inside Miss Peregrine's dilapidated house is scary enough, but heading into the dark, creepy basement takes a new level of courage Jacob has to tap into. We feel you, dude.