The 26-year-old believes that Les Bleus have the quality to overcome a 2-0 first-leg deficit, with the squad determined to display their ability and qualify against the odds
Tuesday's hosts must win by two or more goals - assuming the task is not made harder by conceding any away goals - against a team who have gone eight matches without conceding but the Tottenham goalkeeper is confident.
"We stay calm because we believe," he told reporters. "There is hope. We have a lot of quality and it also takes a vengeful state of mind.
"We took a slap and, when France's backs are against the wall, we must confront the opposition. We will be ready to give everything we have."
Didier Deschamps's men will be without defender Laurent Koscielny, who is suspended after picking up a red card in the first leg, but Lloris believes that there is still plenty of quality in the team.
"We have many talented players and they will have to put in a collective effort. We will require everyone to be at 200 per cent for this achievement," the 26-year-old continued.
"There is a lot of motivation. We can say all we want about the match but we will have to show what we are able to play at our best from the start.
"We must be mature and not lose focus on the main task. It will be a great opportunity to show that we are able to play as a team.
“There is not much change in the preparation. Our backs are against the wall, we are facing an obstacle and a handicap of two goals. As of now, everything remains to be done."
Lloris knows that Tuesday's is a crucial game, adding: "The opportunity to play a World Cup comes only every four years. It is one of the more important matches I will play in my life, for me and for all the players.
"We are aware of this and we talked. It is up to us to show that we really want to take this step and we hope to do so together."