The definition of God is given there, and the qualification of God is given there, that He instructed Brahmā. Brahmā is calculated to be the prime personality within this universe, but he was also instructed by God. Tene brahma, ādi-kavi. Ādi-kavi means the first man, the first man of knowledge.
So you may question that, "In the creation, first, there was only one living creature, Brahmā. Then where he went to take lessons? Who instructed him? There was no other living creature." That is also another qualification of God. God created. That also you know. You have read in your Bible. God created, but He is not one of the created beings. He created. Therefore, before creation He was there. It is to be concluded. Before creation of this cosmic manifestation, He was existing. That information you'll have from Śrīmad-Bhāgavatam, janmādy asya yataḥ (SB 1.1.1), in Vedānta-sūtra, "the original source of all emanation."
So God created. Try to understand what is the position of God. "God created" means before the creation, God was there. Just like if you say that, "Mr. Such-and-such has constructed this building," that means before the construction of the building, Mr. Such-and-such was living, was existing. So "God created" means God is not one of the beings who were created. He is beyond creation.
Therefore one great stalwart ācārya of India, Śaṅkarācārya, whose name you might have heard, he says, nārāyaṇaḥ para avyaktāt, avyaktāt anya-sambhavaḥ: "Nārāyaṇa, God, the Supreme Lord, He is beyond this creation. He's not one of the created beings." You try to understand. God said, "Let there be creation," and there was creation: "Yes." His word is sufficient. His word is sufficient.
You can take practical example: In your country you can understand this nice example. During the fall, all of a sudden, all the leaves of the tree, they fall down. There is no more leaf. And again, during the beginning of spring, the . . . immediately everything becomes green. Now, how this is happening? If you decorate one tree, if you want to take out all the leaves of a tree, it will take months together.
And if you want to decorate one tree without leaves, it will take months. But you can see that within a few days all leaves are fallen down, and within a few days all leaves are coming out. So why don't you believe that simply by the word of God there may be creation, there may be destruction? That is sufficient. He doesn't require any engineering. Simply that vibration is sufficient. Śabdāt pravṛttiḥ.
So these things are very nicely, clearly explained in the Vedic literature. If you take advantage of this Vedic literature, especially of the . . . Bhagavad-gītā is the preliminary study, A-B-C-D. Bhagavad-gītā is not very high-standard spiritual knowledge. It is simply elementary, A-B-C-D knowledge of spiritual life, rudimentary knowledge. And if you want to study more and more, there is Vedānta-sūtra, there is Śrīmad-Bhāgavatam, Upaniṣad, so many things.
So our Kṛṣṇa consciousness movement is to give people chance to take advantage of this Vedic literature.