God does have a sense of humour - human beings are created in His image.
How could we appreciate humour if God does not?
A small thing, but the camel and the eye of the needle example is not actually humorous but an actual example of real life.
In those days every city of any consequence was walled.
The only way onto these cities was through gates.
These gates usually had gates in the gates called the 'eye of the needle'.
These smaller gates had very specific dimensions that were only just wide enough to let a camel or a horse through.
Considering that camels and horses were generally used as beasts of burden they would have to be completely stripped of that burden before they pass through the 'eye of the needle'.
The object of the exercise was security.
Every animal would be stripped of its burden in front of the city guards, pass through the gate and then be reloaded on the other side.
When Jesus said, “Assuredly, I say to you that it is hard for a rich man to enter the kingdom of heaven.24 And again I say to you, it is easier for a camel to go through the eye of a needle than for a rich man to enter the kingdom of God.” (Matt 19:23-24), this is what he was referring to.
The implications of this were not lost on the disciples, 25 When His disciples heard it, they were greatly astonished, saying, “Who then can be saved?” (Matt 19:25).
Why were they so astonished?
Probably for the first time they realised that none of their own merit would save them - obedience to the law obviously mean't nothing as far as righteousness before God was concerned!
Jesus reply was a bit enigmatic, "With men this is impossible, but with God all things are possible." (Matt 19:26).
However, now, as New Covenant believers, we know the answer to the question posed by the disciples: 8 For by grace you have been saved through faith, and that not of yourselves; it is the gift of God, 9 not of works, lest anyone should boast. (Eph 2:8-9)