The difference between Buddha and God

In this video, Master Sheng Yen shared about the difference between Buddha and God. "In Buddhism, ""sin"" is the bad karma one brings from one's past lives since beginningless time; it reflects the idea of causality, or cause and effect. To eliminate our karma and change our fate, only we can resolve our karmic hindrances but not Buddha.The Buddha can only teach us how to resolve our karmic hindrances.

From Wikipedia on Hungry Ghost Festival

The timing and origin story of the modern Ghost Festival, however, derive from the apocryphal Mahayana scripture known as the Yulanpen or Ullambana Sutra. In it, Mulian (i.e., the disciple Moggallāna) asks the Buddha about how he can relieve the suffering his mother is enduring in her present incarnation as a hungry ghost. Prior to his enlightenment, both of this parents had died. His clairvoyance had found his father's new incarnation in the heavenly realms but his mother had been greedy with money he had left her, refusing to help the monks who passed by, and she had been reborn into Avīci, the Realm of the Hungry Ghosts or Pretas. These had ravenous appetites but could not eat, either because food burst into flames upon their touch or because their throats were too thin and fragile. Mulian is informed that a tray of food offered to the community of monks and nuns at the time of their return from the summer retreat (i.e., on the 15th day of the 7th lunar month) will prompt them to offer prayers that will benefit 7 generations of his ancestors.^[5] In his case, his mother was raised from the status of a hungry ghost and was reborn as a dog owned by a rich family. He then raised her to humanstatus by giving food and new robes to 500 monks.