The second North London derby of the season takes place at White Hart Lane at the weekend, and Bale hopes that a result against their rivals can help propel them into the Champions League.
"It's one we want to win. We started well last time and the sending-off was a problem," Bale told ESPN. "We want to rectify that score now and hopefully get the three points.
"We go into the game full of confidence, looking for three points to boost our hopes of getting into the Champions League.
"It's massive. We know how big it is - not just for us but for the fans."
Spurs host Arsenal at White Hart Lane on Sunday.