《明史·志·卷二十四》
于是问大学士张璁： 《尚书》中说焚烧木柴祭天，又说 类于上帝 ，《孝经》说， 郊祀后稷以配天，在明堂宗祀文王以配上帝 ，因形体主宰的不同而言。
乃问大学士张璁： 《书》称燔柴祭天，又曰 类于上帝 ，《孝经》曰： 郊祀后稷以配天，宗祀文王于明堂以配上帝 ，以形体主宰之异言也。
So, emperor asks the university official Zhang Cong: In the "Book of Shang," it is said that burning firewood sacrifices to Heaven, and also said "similar to the Sovereign Emperor," in the "Classic of Filial Piety," it is said that "ancestral land temple to worship Hou Ji to accompany Heaven, in the Hall of Culture, the ancestor of the Zhou Dynasty to accompany the Sovereign Emperor," therefore, the different words are alluding to different entities being worshipped.