Why did the people of Israel make a golden calf? Why did they, as the responsorial psalm says, exchange their glory? Sometimes we can think they were completely turning their back on their faith. I am not sure that tells the whole story. Just before we come to the section we hear today, we are told that Moses is delayed coming down the mountain. The people become scared. Moses had been their human connection to God. So they make something tangible to take the place of Moses, and to make them feel closer to God. We can be tempted in the same way. Yet, because of the person Jesus, fully human and divine, we really do have all we need.