Monotheistic concept of God is proved by scientific knowledge. Scientific knowledge provides an academic verification of this concept of the one God. It affirms that God cannot be more than one, the concept of many gods not being understandable to a scientist.

The world discovered by science is a wholly unified world. All the parts of the present world are so interlinked with each other that it is impossible to separate them from one another. In such a world the concept of more than one God is quite alien. For instance, if the sun, the air, water, human beings and the earth had not been governed by one and the same Creator, a world of the present kind would never have come into existence. For instance, if the sunshine reached the earth unhampered, without there being the atmosphere to neutralize its harmful rays, the sun would be a killer instead of a source of life. If the gases in water were not in their present proportions, no living organisms could ever have come into being on the earth. If the size of the earth were half or double the present size, in either case civilization on earth would have been well nigh impossible.

There are countless things in the world. But everything exists in such proportions as will give the maximum benefit to life on earth. None of the things on this earth are out of proportion. This shows that there is only one God—the Creator and Sustainer of this world. If there were different gods for different things, then, this perfect balance could never have been possible. In ancient times people believed that there were numerous forces controlling the universe. Newton reduced these forces to the following four: gravitational force, electromagnetic force, strong nuclear force, and weak nuclear force.

However, the extraordinary unity that scientists found in the world was incompatible with the notion that four forces were controlling it. That is why the scientists have been trying to reduce the four forces to one. Their efforts were crowned with success in the second half of the twentieth century. It is now generally believed that there cannot be four forces controlling nature, but only one. This has led to the formulation of the Single String Theory by scientists. This goes to prove that the concept called tawheed (oneness of God) in revealed knowledge is fully borne out by scientific knowledge as well—that there is only one God, not many gods controlling this world.