Kabbalah for Deuteronomy 5:20

"Without form" means strangulation, as it is written, "a line of confusion" (Isaiah 34:11) that is "a measuring line" (Zech. 2:5). "Void" means stoning and refers to the stones that are sunk in the great deep for the purpose of punishing the wicked. And "darkness" means burning. As it is written, "And it came to pass, when you heard the voice out of the midst of the darkness, while the mountain did burn with fire" (Deut. 5:20). And this fierce fire "shall fall upon the head of the wicked" (Jer. 23:19) to burn them.