Defoe was left out of the matchday squad last weekend against Arsenal.
The England striker responded by coming off the bench and scoring twice in the midweek UEFA Cup clash, with Bent also on the scoresheet against minnows Anorthosis Famagusta.
"He was down," said Bent.
"I speak to him virtually every day, if not in training then on the phone. He wants to play every game and he showed what he's capable of.
"He never seems to get a fair crack of the whip. The two goals show the kind of player he is."
Bent's arrival was meant to help Spurs reach the Champions League but there have been serious concerns whether Jol will be the man to take them there.
"I don't know what's happened over there (at Chelsea) but the fans here and the players love Martin Jol and we responded in the right way against Famagusta," Bent added after the 6-1 win against the Cypriots.
"Everybody wanted to give a big performance and we knew that we were only one game away from giving somebody a hiding.
"He finished fifth two years in a row and maybe it's a bit unjustified. But we don't know what goes on upstairs. We all love the gaffer and we want to show him on the pitch."