Wenger’s side looked to have clinched all three points after two goals from Olivier Giroud and an Aaron Ramsey strike canceled out Roberto Firmino’s brace.
But the Gunners were denied maintaining their two point lead at the top of the table by a Joe Allen strike in the 90th minute.
“They need to transform the frustration they have in the dressing room at the moment to even more motivation for the next game,” Wenger said.
“I think what happened (at Anfield) should strengthen their belief that they have a big part to play in this league.”
The draw kept Arsenal at top of the league but only on goal difference ahead of Leicester, who continued to surprise with a 1-0 victory over Tottenham.
The Emirates club head into Sunday’s clash with Mark Hughes’ men having beaten them just once in their last seven league meetings at the Britannia Stadium.