Q: What does an angel use to light a campfire?
A: A match made in heaven!
Explanation: When people go camping, sometimes they will build a campfire for cooking, roasting marshmallows, or telling stories.
To build a fire you need dry wood (small pieces to start the fire) and a match to light the fire. Matches are small sticks or pieces of cardboard that you strike on the match box to create a flame, fire.
“A match made in heaven” is an idiom meaning a perfect match, usually referring to two people who make a good couple.
This joke is funny because it plays with the word match (the stick used to create fire) and the idiom “a match made in heaven.” Because angels come from heaven, they would use matches that come from heaven to start their fire.
If you want to see how matches are made, watch here: