Post Praetorian said:
Is it possible for God to have a sense of humor? If so, what form must it take?
Is God able to have a light sense of humor?
1) A light sense of humor may be described as the ability to laugh at one's self or others in a lighthearted manner.
2) Lightheartedness is expressed as being 'carefree; cheerful; [or] gay'
3) God cannot be described as the third option above (reference: www.Bible.com)
4) Cheerfulness is described as 'noticeably happy and optimistic'
5) Carefree is described as 'without cares; free of concern; easy; casual; without difficulty'
6) God is never once heard to sing happily to himself or whistle.
7) God invented Hell.
8) God cannot be considered cheerful (from 4 and 6).
9) God cannot be considered carefree (from 5 and 7).
10) God cannot be said to have a light sense of humor (from 3, 8, 9).
One thing that may be considered is that if, as Christian theology has it, we are made in the image of God, it seems likely that humour would have been part of the package.
Additionally, Jesus, being human, almost certainly had a sense of humour. It seems unlikely he would have been accused of being a drunkard if he were serious all the time.
Psalm 2:2-4 and 37:12-13 has God laughing at the foolishness of the wicked. That could be taken as a sense of humour, but could also be taken as sadistic, depending on how one views things. A loving God certainly wouldn't be happy about a wicked person suffering eternal punishment.
So, I think the Christian God has a sense of humour. Whether such a thing is really possible must be explored through further discussion.