Lennon struck in injury-time to earn the three points for Spurs.
"I never thought we'd lose the game," Lennon told the Spurs website. "Even when they went 1-0 up I always believed we'd score.
"The lads don't panic. We know the quality we have, the individuals in the team, we've so many players who can score out of nothing.
"It was great to score. I hadn't scored for a while, so to score so late and to know more or less that is was the winner was great."