The French striker told the club's website: "It is very important for such a great club as Arsenal to be in the Champions League. It is a duty.
"We really want to get qualified. We have been participants for 16 years so we want to be there again. To do that we have to give our best on the pitch, give 100% in every single match.
"We were very happy [to get back in front of Everton] because we have come from a difficult place. The wins over Wigan and then West Ham and Hull have given a boost to our morale."
Arsenal host Newcastle United on Monday.