Okay kiddo, so in John 20:23, Jesus tells his disciples that if they forgive someone’s sins, then those sins are forgiven. But if they don’t forgive, then the sins are still there. It’s like if someone did something wrong to you and you forgave them, then everything is okay and they’re not in trouble anymore. But if you didn’t forgive them, then they would still be in trouble for what they did. Basically, Jesus is saying that forgiving someone is really important and can help make things better.