God - is the Creator. He created the universe. We can call him differently: Svarog, Ishvara and just God. God is one and plural. Ishvara is a spirit always free from restrictions. He is eternal, most powerful, omniscient, perfect, selfless, useful to all living things. It is the supreme cosmic spirit that rules the universe. There is also a Ukrainian form of this word: Біг, this is where the word спасибі comes from. The root cause of all that exists is God. There is a certain order in the world. God is the reason for this order. Knowledge of God requires special quality. “Happy pure in heart, for they shall see God”.
And his greatest and first commandment is, "Thou shalt love thy God, with all thy heart, with all thy soul, with all thy strength, and with all thy thought."