The One God concept (as the Judeo-Christian God) you refer to, Macauley, was largely unknown in the time of Siddhartha Gautama, who became known as the Buddha.
God, in the form most of the religious world now observes, arose from the time of the Jewish Captivity in Babylon in the 6th century BCE. The origin of modern monotheism. Long story that.
Buddhism is not a religious doctrine as much as the principles of a lifestyle, dedicated to the pursuit of personal enlightenment, ultimately to attain Nirvana-- to fully "blow out" the conditions that cause suffering. In Buddhism, suffering is anything outside of happiness, the Buddha taught the paths to release oneself from sufferings (and by connection, everyone else), to pursue nirvana. This is most accurately defined as a state of perfect peace, the extinction of want and disharmony. As this is an intensely personal journey, no god(s) need apply.
In fact, as one raised in the cradle of Hinduism, the Buddha recognized the inherent peril in man's competing theisms, and he questioned their attending doctrines. Worship of specific supernatural deities is absent in Buddhist teachings.