Hisory of Modern Philosophy

please respond to the following post:

According to Spinoza there is only one substance and the other living things are only extended forms of this one essence. A substance is a thing that cannot exist or be created without the presence of other things. The substance he refers to is God or nature. One way one can challenge Spinoza monistic pantheism by stating God cannot be both eternal and limited simultaneously in time. Pantheism states that the entire universe is God. The only thing other than the material, forces, and laws that are manifest in the cosmos as it exists, is what constitutes God. Whereas monism believes everything that exists is a component of a single, complete whole. We can see how Spinoza’s perspective contradicts each other