How Did My Little Temple God Become the Patron Saint?

Thousands of years ago, Ning Yunfan was a great scholar in the world, with great uprightness and willingness to do good. After death, he became a true king in a temple and was worshiped by others. Thousands of years later, when he woke up again, the statue of the true king was recast into gold by the world. Ning Yunfan discovered that he had arrived in a strange era. Demons are lurking in chaos, and the world is crumbling! The system is now activated. Slowly starting, there is a guardian angel in the world! Ten years have passed, and the undercurrent has surged. Until that day, the demonic energy rises to the sky and threatens to destroy the world! In a small, inconspicuous temple, an impatient "noise" could be heard softly... Immediately afterwards, a divine hand that covered the sky and the sun reached out and turned the so-called invincible demon into a rain of light across the sky like it was crushing dust! Who says the old gods are old? He just... Is too lazy to open his eyes!