This week's Torah reading is called Ki Tisa, and the main story it contains is the long story of the Golden Calf. Our sages added a reading of the prophets after the regular Torah reading (Melachim 1, ch. 18). In this additional reading we find a very interesting story about the prophet Eliahu and his questioning the Jewish people: until when are you going to step in two directions?

Based on Likutei Sichot, vol. 1, p. 183