Who said "There's nothing I can't do if I believe in myself."?

This quote is attributed to SpongeBob SquarePants.

There's nothing I can't do if I believe in myself. - SpongeBob SquarePants

"There's nothing I can't do if I believe in myself."

SpongeBob SquarePants Faith

"I'm ready!"

"Ahahaha! I love you."

"The best time to wear a striped sweater is all the time."

"I'm a goofy goober, yeah!"

"Faith guides me through difficult times."

"Faith is believing when you can't see."

"You have to believe in something, or you'll fall for anything."

"Faith in God and in each other is what sustains us"