Flint and steel does the trick.
I don't think they had steel 4000 years ago. I could be wrong. But, even if you did, you couldn't start a wick burning with just a spark. The spark needs to hit a very fine tinder and then quickly wrapped up with more tinder and then you blow on it until it bursts into flame. Then you transfer that flame to your already prepared fine kindling etc...
Sorry, I'm an old boy scout dad who loves to go camping.