Daniel 7:23
"He gave me this explanation: 'The fourth beast is a fourth kingdom that will appear on earth. It will be different from all the other kingdoms and will devour the whole earth, trampling it down and crushing it.
The fourth kingdom will be the maturing of the sinful nature of the Devil in the rule of man. The final power of the sinful nature of the Devil will be unleashed on Earth through the evil rule of man. As the end nears for the Devil on Earth, he will unleash all he got left in him to deceive and devour the Earth. But, it will be an intriguing rule. One that you won't be able to say for sure, if it's good or bad for mankind, but it is evil to the core without it's disguise, of course. It may appear like it is helping to solve mankind's ever-growing problems but it won't. It will get the world more entangled in sin. We will witness the trampling power of the sinful nature of the Devil in and through man. But, it won't be for long. It won't last long as you would have thought it would. It will end abrubtly. There will be a distinct end to evil on Earth. In fact, with the revealing of the fourth beast on Earth, evil will come to an end. How this end would come, we will see and probe further.
Even the kingdom of the Devil with it's maturity in evil was referred to with a body of the beast. So, one body is against another. The body of the Devil which has matured with his sinful nature against the Body of Christ which has matured with His divine nature formed in them to His fulness. This was what Daniel the prophet of God was interpreting here in the passage above.