Ki Tissa it better to let the people worship the Golden Calf, for which they might yet find forgiveness through repentance. And thus Rabbi Tanhum bar Hanilai concluded that it was in reference to Aaron's decision-making in this incident that can be read to mean, "He who praises one who makes a compromise blasphemes God." The Sages told that Aaron really intended to delay the people until Moses came down, but when Moses saw Aaron beating the Golden Calf into shape with a hammer, Moses thought that Aaron was participating in the sin and was incensed with him. So God told Moses
Law given to Moses at Sinai Law given to Moses at Sinai A Law given to Moses at Sinai (Hebrew "Halakhah le-Moshe mi-Sinai" הלכה למשה מסיני) refers to a halakhic law that is neither explicitly stated in the biblical laws nor derived from it by Talmudical hermeneutics but known from the Jewish tradition. As a category, "The law given to Moses at Mount Sinai" refers to halakhot not included in the Written Torah, but which were transmitted orally (the Oral Torah) since time immemorial from one generation to the next, with no scriptural source. The laws are nonetheless considered by the Talmud to have the force