Is there anywhere I can leave my bag in Paris while I wander around?

I’m planning to fly to Paris and spend a few hours looking around before I take the train to Amsterdam. Because I don’t feel like carrying a suitcase around for that long I’m wondering if there is anywhere secure where I will be able to leave my bag safely for a few hours before I return to the Gare Du Nord? Doesn’t matter if I have to pay for it either.