Spurs are a point off third-placed Chelsea and two behind Arsenal, although they have a game in hand on their north London rivals ahead of next weekend's match against struggling Wigan.
"I think it was very important for the team to come back," he said. "In the first half we couldn't play our game the way we wanted the set back of suffering a goal so early affected our confidence.
"We have to continue, Wigan away will be difficult because Wigan are fighting for survival. You just have to gather the most amount of points as possible - that is our objective. Our game against Chelsea could be the decider in the end."
Bale scored his 23rd goal of the season after making a comeback from the ankle injury he suffered against Basle just over three weeks ago.
The Wales international struggled to impact the game in the early stages but was shifted to the right flank by Villas-Boas, who was pleased with Bale's contribution.
"Fitness levels are very, very difficult to understand," he added.
"We had the green light from the player and he felt well to approach the game and I think the impact of having him in the team is also important.
"When we moved him to the right, (Gael) Clichy stopped going forward due to the respect they have for Gareth.
"After he felt confident with his assist he gained a little bit more confidence and then the mind takes over the fitness levels and he was able to play the full 90 minutes with great importance."