I wouldn't be able to square that belief with facts that come to us from the field of geology. The earth is much older than a few thousand years. A trip to the Grand Canyon hints at that truth of geology.
And of course, science can prove how old the rocks are:
I was struck by the crowds at the Grand Canyon, by how many people I saw who were oblivious to the Grand Canyon, who walked beside it, punching messages into their phones. I didn't take pictures of those people. I didn't want to be oblivious to the world around me:
I was also struck by the hardiness of the plants that are able to take root in such a harsh landscape: