"Where were you when I laid the foundations of the earth? Tell me, if you have understanding. ... Have you comprehended the expanse of the earth? Declare if you know all this. ... [Shall he that contendeth with the Almighty instruct him? He that reproveth God, let him answer it.]" (Job 38:4, 18, 40:2 ESV [KJV])
So what is the Almighty's response to the rebelling nations? "He who sits in the heavens laughs; the Lord holds them in derision." This laugh is not a jolly Saint Nick laugh, a high pitched school girl laugh, or even a maniacal hyena laugh. It is a laugh of ridicule or scorn to show contempt - a derisive laugh. Merriam-Webster defines contempt as "the act of despising, disdain or the lack of respect or reverence for something."
I get the picture of tiny men yelling out in a wee mousey voice to the Almighty God: "we don't need you." "Then he will speak to them in his wrath, and terrify them in his fury." Often the pride of the nations have them asking one another, "Are you for us, or for our advesaries?" When this question is placed before God and the commander of His army the answer is, "No! As for me, I have set MY KING on Zion, MY holy hill." There is no Round Table when God's King is involved.
"The Lord laughs at the wicked, for he sees that his day is coming."
-Wesley