Is there no humour in the Bible? Really? Humour is playful and creative, and the Creator Himself is of course both creative and I would also say have humour. Some of the parables Jesus told are both creative, playful and have humour. The camel and the needle's eye for one. Yes. The message is profound and serious, but the approach is, I repeat myself here, creative and playful. So. To have humour as Christians wouldn't, in my opinion, be sinful, but an expression of the creativity we got being created in the image of God.